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10 Best Sterile Processing Certifications of 2026
This list is for people starting out as sterile processing technicians and for working techs choosing their next credential. It covers seven certifications from the two U.S. certifying bodies, HSPA (formerly IAHCSMM) and CBSPD, and three online programs that prepare students for HSPA's CRCST. We compared documented eligibility rules, required hands-on hours, exam formats, published fees and renewal terms from each organization's own pages and handbooks. Scores weigh features (recognition, scope and career reach) at 40 percent, ease of access at 30 percent and value at 30 percent. Fees were checked in November 2026. Check local job postings to see which credential employers near you name.
By the Mojolin research desk · Updated November 11, 2026 · 10 tools compared · Prices checked on vendor pages, latest November 11, 2026
Questions or corrections: editorial@mojolin.com
Mojolin is self-funded How we score
Start with HSPA's CRCST: it is the entry credential with ANAB and NCCA accreditation, year-round testing, a $140 fee, and the prerequisite for HSPA's CIS and CHL. Choose CBSPD's CSPDT if you have finished a training course but lack 400 supervised hours, or if you prefer a five-year term over yearly renewal. Endoscope staff should look at HSPA's CER or CBSPD's CFER, instrument specialists at CIS or CSIS, and future managers at CHL. If you need structured study, Purdue's course is the low-cost option at $350, U.S. Career Institute adds coaching and a $140 exam reimbursement for $979, and CareerStep bundles exam fees and a wider medical curriculum for $3,199.
Top picks
Best overall
HSPA CRCST (Certified Registered Central Service Technician)
8.9 / 10
New and working sterile processing technicians who want the credential most departments ask for
Read the review →Runner-up
CBSPD CSPDT (Certified Sterile Processing and Distribution Technician)
8.6 / 10
Techs with a year of SPD work or a passed training course who want a five-year certification term
Read the review →Also great
HSPA CIS (Certified Instrument Specialist)
8.1 / 10
CRCST holders who want to specialize in surgical instrumentation
Read the review →Comparison table
| # | Tool | Pricing | Score | |
|---|---|---|---|---|
| 1 | HSPA CRCST (Certified Registered Central Service Technician) | New and working sterile processing technicians who want the credential most departments ask for | $140 exam fee, including a $25 non-refundable submission fee; $50 a year to renew | 8.9 |
| 2 | CBSPD CSPDT (Certified Sterile Processing and Distribution Technician) | Techs with a year of SPD work or a passed training course who want a five-year certification term | $135 exam fee; convenience fees may apply | 8.6 |
| 3 | HSPA CIS (Certified Instrument Specialist) | CRCST holders who want to specialize in surgical instrumentation | $140 exam fee, including a $25 non-refundable submission fee; $50 a year to renew | 8.1 |
| 4 | HSPA CER (Certified Endoscope Reprocessor) | Endoscopy and GI techs who reprocess flexible scopes | $140 exam fee, including a $25 non-refundable submission fee; $50 a year to renew | 8.0 |
| 5 |  Purdue University Sterile Processing Technical Training | Self-starters who want low-cost CRCST exam prep from a university | $350 without books; $518 with books shipped in the continental U.S. | 7.9 |
| 6 |  U.S. Career Institute Sterile Processing Technician Program | Career changers who want a guided online program with the CRCST fee covered | $979 paid in full, or $69 a month ($1,279 total) | 7.8 |
| 7 | HSPA CHL (Certified Healthcare Leader) | Experienced CRCST holders moving into lead, supervisor or manager roles | $140 exam fee, including a $25 non-refundable submission fee; $50 a year to renew | 7.7 |
| 8 | CBSPD CSIS (Certified Surgical Instrument Specialist) | CSPDT holders with OR instrument experience | $135 exam fee; convenience fees may apply | 7.6 |
| 9 | CBSPD CFER (Certified Flexible Endoscope Reprocessor) | Endoscopy staff with a year of scope work or a short endoscopy course | $135 exam fee; convenience fees may apply | 7.5 |
| 10 |  CareerStep Sterile Processing Technician Program | Students who want an all-in-one online program with exam fees bundled | $3,199 for full program access, including exam fees | 7.3 |
Scoring weights
Every tool gets three editorial scores out of 10, from vendor documentation, product pages and the published price. The overall score is the weighted average below, the same method on every list. Full method
The full ranking
Rank 1 · Best overall
HSPA CRCST (Certified Registered Central Service Technician)
The Healthcare Sterile Processing Association's entry-level credential for technicians who clean, inspect, package and sterilize surgical instruments.
myhspa.org8.9
out of 10
Best for: New and working sterile processing technicians who want the credential most departments ask for
HSPA's CRCST is the introductory sterile processing certification from the association formerly known as IAHCSMM, which began certifying technicians in 1971. HSPA states the credential is accredited by both ANAB and NCCA. The exam has 150 multiple-choice questions, 125 of them scored, and you get three hours. Testing runs year-round at Prometric centers, and you have 120 days after approval to sit. The catch is experience: CRCST status needs 400 hours of hands-on work in a sterile processing department, broken into decontamination (120), preparing and packaging (120), sterilization and disinfection (120), storage and distribution (24) and quality assurance (16). You can log those hours first, or test and finish them within 6 months under provisional certification. The fee is $140, which includes a $25 non-refundable submission fee. Upkeep is yearly: 12 technical CE credits and $50. CRCST is also the prerequisite for HSPA's CIS and CHL, so it starts the HSPA ladder.
Standout feature
The only exam in this list that HSPA says is accredited by both ANAB and NCCA and offered year-round at Prometric centers.
Use cases
Career changers finishing a sterile processing course
Test right away and complete the 400 hours on the job
Outcome: Provisional CRCST status while the hours are logged within 6 months
Uncertified techs already working in an SPD
Document 400 supervised hours and sit the exam
Outcome: Full CRCST status and eligibility for CIS or CHL later
Key features
- Accredited by both the ANSI National Accreditation Board (ANAB) and the National Commission for Certifying Agencies (NCCA)
- 150 multiple-choice questions, 125 scored, with three hours to finish
- Tested year-round at Prometric centers, with a 120-day window to sit the exam after approval
- Full route with 400 hands-on hours before testing, or provisional route with the 400 hours completed within 6 months of passing
- Renewal every year with 12 technical CE credits and a $50 fee
Pros
- Year-round testing instead of fixed exam windows
- Provisional route lets you test before finishing the 400 hours
- Required before you can sit HSPA's CIS or CHL exams
Cons
- 400 supervised hours are required, split across five work areas
- Annual renewal with 12 CE credits and a $50 fee
- Exam is offered only in English
Rank 2 · Runner-up
CBSPD CSPDT (Certified Sterile Processing and Distribution Technician)
The Certification Board for Sterile Processing and Distribution's entry-level technician exam.
cbspd.net8.6
out of 10
Best for: Techs with a year of SPD work or a passed training course who want a five-year certification term
CBSPD's technician exam is the main alternative to HSPA's CRCST, and passing it lets you use the title CSPDT. CBSPD calls it entry-level testing for minimum competency, covering cleaning, decontamination, high-level disinfection, assembly and packaging, sterilization, storage and distribution. You need to meet one of four routes before the deadline: 12 months of SPD work, 6 months each of allied health and SPD work, completion of a sterile processing training course with a grade of 70 or higher, or 12 months of SPD-related sales or service. That course route is the practical difference: a graduate can apply without logging 400 supervised hours. The exam has 150 questions, 25 of them unscored pretest items, and costs $135 plus possible convenience fees. Initial certification lasts five years. The trade-offs are logistics: the application is paper only and mailed, and exams run in four one-week windows a year, with the next one set for February 1 to 6, 2027.
Standout feature
The only technician exam here where a passed training course alone qualifies you to sit.
Use cases
Graduates of a sterile processing course
Get certified without a separate supervised hours log
Outcome: CSPDT title through the course route
Surgical instrument sales reps
Show SPD knowledge after 12 months in the role
Outcome: A technician credential through the sales or service route
Key features
- Four eligibility routes: 12 months of SPD work, 6 months each of allied health and SPD work, a training course passed with 70 or higher, or 12 months of SPD sales or service
- 150 questions, including 25 unscored pretest questions
- Exam windows of one week in February, May, August and November
- Initial certification valid for five years
- Covers hospitals, clinics, dental offices, physician offices and surgery centers in its scope
Pros
- $135 exam fee is the lowest technician fee in this list
- A passed training course alone meets eligibility, with no separate hours log
- Five-year certification term instead of yearly renewal
Cons
- Paper application must be printed and mailed
- Only four one-week testing windows a year
- Exam offered only in English in the United States
Rank 3 · Also great
HSPA CIS (Certified Instrument Specialist)
HSPA's secondary certification for advanced surgical instrument identification, inspection and assembly.
myhspa.org8.1
out of 10
Best for: CRCST holders who want to specialize in surgical instrumentation
HSPA's CIS is the natural second credential for a CRCST holder who spends most shifts in instrument assembly. HSPA describes it as a secondary certification for surgical instrumentation. To apply you need current CRCST status and 200 documented hours in a sterile processing department, split into decontamination (56), assembly, preparation and packaging (55), sterilization and disinfection (28), storage and distribution (20), quality and information systems (33) and surgical procedure observation (8). The exam covers six domains, with instrumentation identification and inspection, testing, integrity and assembly at the core, and follows the same format as CRCST: 150 questions, 125 scored, three hours, $140. Renewal needs current CRCST plus 6 instrument-focused CE credits each year. HSPA's handbook says additional certifications renew in the same month without additional fees, so the $50 yearly renewal covers both. The limit is access: newcomers cannot take it until they hold CRCST.
Standout feature
Adds an instrument specialty for $140 with no second renewal fee for CRCST holders.
Use cases
CRCST techs working in instrument assembly
Prove advanced instrument knowledge
Outcome: A second HSPA credential renewed with the same yearly fee
Lead techs training new staff on trays
Back up their instrument expertise with a credential
Outcome: CIS status after 200 documented hours
Key features
- Requires current CRCST status
- 200 hands-on hours before applying, including 8 hours of surgical procedure observation
- Six domains, including instrumentation identification and inspection, testing, integrity and assembly
- 150 questions, 125 scored, three hours
- Renewal requires current CRCST plus 6 instrument-focused CE credits a year
Pros
- Same $140 fee as CRCST
- No added renewal fee beyond the single $50 HSPA renewal
- Year-round Prometric testing
Cons
- Only open to current CRCST holders
- 200 documented hours must be finished before you apply
- Adds 6 CE credits a year to your CRCST load
Rank 4
HSPA CER (Certified Endoscope Reprocessor)
HSPA's core certification for staff who clean, disinfect and store endoscopes.
myhspa.org8.0
out of 10
Best for: Endoscopy and GI techs who reprocess flexible scopes
HSPA's CER targets the people who handle flexible endoscopes, a job that often sits in GI or endoscopy units rather than the main sterile processing department. HSPA calls it a core certification, so it stands alone without CRCST. To apply you document at least three months of hands-on experience covering pre-cleaning, testing, decontaminating, inspecting, disinfecting or sterilizing, transporting and storing endoscopes. The exam covers seven domains, including microbiology and infection control, endoscope design, work area design, reprocessing steps, handling and storage, tracking and repair, and human factors. Format and price match the other HSPA exams: 150 questions, 125 scored, three hours, $140. Renewal needs 6 endoscope-focused CE credits a year. The trade-off is scope: CER says little about instrument trays or steam sterilization, so techs in a general SPD usually want CRCST first and CER second.
Standout feature
The only HSPA credential here that is both standalone and specific to endoscopes.
Use cases
GI unit technicians
Certify their scope reprocessing work
Outcome: A standalone credential after three months of experience
CRCST holders moving into endoscopy
Add a scope credential
Outcome: CER renewed alongside CRCST each year
Key features
- No CRCST prerequisite
- Three months of hands-on endoscope experience before applying
- Seven domains, from microbiology and infection control to endoscope tracking, repair and system maintenance
- 150 questions, 125 scored, three hours
- Renewal requires 6 endoscope-focused CE credits a year
Pros
- Standalone credential, so you do not need CRCST first
- Only three months of experience required
- Lighter yearly CE load than CRCST, at 6 credits
Cons
- Narrow scope limited to endoscopes
- Experience must cover every step from pre-cleaning to storage
- Annual renewal fee still applies
Rank 5
Purdue University Sterile Processing Technical Training
An online, self-study course built with HSPA to prepare students for the CRCST exam.
purdue.edu7.9
out of 10
Best for: Self-starters who want low-cost CRCST exam prep from a university
Purdue's Sterile Processing Technical Training is the self-study course HSPA lists on its training page, developed with HSPA's education department. Purdue says the two have partnered on sterile processing training for over 35 years. The course is aimed at central service, operating room, infection control and materials management staff preparing for CRCST, and includes lessons with quizzes, videos and virtual training exercises, plus a final exam you take with a proctor of your choosing that is designed to mimic the CRCST exam. Pricing is clear: $518 with books shipped in the continental U.S., or $350 if you already own HSPA's 9th Edition technical manual. Both include one year of access, and a six-month extension can be bought. The main gap is practical experience. Purdue states it cannot help directly with the 400 hours HSPA requires, and recommends lining them up before enrolling. HSPA also notes that courses are optional, not a prerequisite.
Standout feature
The CRCST prep course that HSPA lists by name, from $350.
Use cases
SPD trainees already in a department
Study for CRCST while logging hours on the job
Outcome: Structured prep that mirrors the exam
Techs who already own the HSPA manual
Add quizzes and a practice final
Outcome: Course access for $350
Key features
- Lessons with quizzes, videos and virtual training exercises
- Proctored final exam designed to mimic HSPA's CRCST exam
- One year of online access, with a six-month extension available
- Book option includes the HSPA 9th Edition Sterile Processing Technical Manual and Workbook
- Purdue and HSPA have partnered on sterile processing training for over 35 years
Pros
- Lowest-cost structured course in this list at $350 without books
- Built around HSPA's own technical manual
- Final exam mimics the CRCST format
Cons
- Purdue cannot arrange the 400 hands-on hours HSPA requires
- No refund once the online course has been started
- Passing the course is not certification
Rank 6
U.S. Career Institute Sterile Processing Technician Program
A self-paced online certificate program that prepares students for HSPA's CRCST exam and reimburses the exam fee.
uscareerinstitute.edu7.8
out of 10
Best for: Career changers who want a guided online program with the CRCST fee covered
U.S. Career Institute's program is a fully online, self-paced certificate built to prepare students for HSPA's CRCST. It has 23 lessons with 23 quizzes, and the school says students can finish in as little as four months, with many done in about nine. Tuition is $979 paid in full or $69 a month for $1,279 total, and it includes e-books, study guides, videos, instructor access and one-on-one career coaching. The school reimburses $140 toward the CRCST exam once a student finishes the course, pays tuition in full and submits the HSPA receipt. The school is DEAC accredited and offers a 5-day money-back commitment. What it does not provide is the hands-on part: the page itself notes that CRCST requires 400 hours in a central service department, completed before testing or within 6 months after. Students need to find those hours through a hospital or employer.
Standout feature
The only online program here that reimburses the $140 CRCST exam fee.
Use cases
Adults switching into healthcare
Learn sterile processing basics part-time
Outcome: CRCST exam readiness in 4 to 9 months
Students who prefer monthly payments
Spread tuition over time
Outcome: $69 a month toward a $1,279 total
Key features
- 23 lessons and 23 quizzes, completed in 4 to 9 months part-time
- Reimburses $140 toward the CRCST exam after completion and full payment
- DEAC accredited, fully online and self-paced
- Instructor support plus one-on-one career coaching
- 5-day money-back commitment
Pros
- CRCST exam fee reimbursement included
- Monthly plan at $69
- Career coaching for resumes and interviews
Cons
- Does not include the 400 hands-on hours CRCST requires
- Costs about three times Purdue's no-books course
- Exam reimbursement requires paying tuition in full first
Rank 7
HSPA CHL (Certified Healthcare Leader)
HSPA's secondary certification for sterile processing supervisors and managers.
myhspa.org7.7
out of 10
Best for: Experienced CRCST holders moving into lead, supervisor or manager roles
HSPA's CHL is the management step on the HSPA ladder. HSPA describes CHLs as responsible for the daily operations of a sterile processing department, including standards and regulation compliance, finance, reporting, staffing, human resource management and communication across departments. Current CRCST status is required, and HSPA's 2026 forms list three documentation options for eligibility: sterile processing experience, leadership experience or an educational requirement. HSPA flagged a CHL eligibility update on its site, so read the current option forms before applying. The exam follows the HSPA format of 150 questions, 125 scored, in three hours for $140, and is offered year-round at Prometric. Renewal needs current CRCST plus 6 management-focused CE credits a year, covered by the same $50 renewal. Purdue's Sterile Processing Leadership Course, listed on HSPA's site, is the matching prep option. It ranks below the technician credentials only because few readers of this list are ready for it yet.
Standout feature
The HSPA route into SPD management, at the same $140 as the entry exam.
Use cases
Lead techs applying for supervisor jobs
Show management knowledge on paper
Outcome: A leadership credential tied to their CRCST
SPD managers without a formal credential
Certify through the leadership experience option
Outcome: CHL status renewed with CRCST each year
Key features
- Requires current CRCST status
- Covers standards and regulation compliance, finance, reporting, staffing, human resources and communications
- Documentation options for SP experience, leadership experience or education
- 150 questions, 125 scored, three hours
- Renewal requires current CRCST plus 6 management CE credits a year
Pros
- Same $140 fee as other HSPA exams
- Renews with CRCST under one $50 yearly fee
- Purdue offers a matching leadership course
Cons
- Not open to new technicians without CRCST
- HSPA updated CHL eligibility documentation in 2026, so check current forms
- Adds yearly management CE on top of CRCST
Rank 8
CBSPD CSIS (Certified Surgical Instrument Specialist)
CBSPD's advanced-practice exam for technicians who specialize in surgical instruments.
cbspd.net7.6
out of 10
Best for: CSPDT holders with OR instrument experience
CBSPD's CSIS is the instrument specialty for technicians already on the CBSPD track. CBSPD calls it an advance practice exam because you must hold its CSPDT technician credential to sit. On top of that you need either a surgical instrument processing or surgical technology course passed with 70 or higher plus 12 months of instrument processing work, or 24 months of operating room instrument processing, or 24 months of surgical instrument sales or service. The scope covers instrument care, identification by proper name, set assembly and configuration, inspection and safety testing, and loaner implant sets, for on-site and off-site facilities. The fee is $135, plus any convenience fees, and CBSPD's initial certification runs five years. The limits mirror the technician exam: paper applications, quarterly one-week windows, and a prerequisite that HSPA CRCST holders do not meet.
Standout feature
Names loaner implant sets in its scope of practice.
Use cases
CSPDT holders on OR instrument teams
Certify instrument specialty skills
Outcome: CSIS title with a five-year term
Instrument sales and service reps
Credential 24 months of field experience
Outcome: A specialist credential tied to CSPDT
Key features
- Requires current CBSPD CSPDT certification
- Plus a passed instrument or surgical technology course and 12 months of instrument processing, or 24 months of OR instrument work or sales
- Covers loaner implant sets, instrument inspection and safety testing
- Scope includes on-site and off-site facilities
- Initial CBSPD certification valid for five years
Pros
- $135 fee, $5 below HSPA's CIS
- Includes loaner implant sets in its scope
- Five-year certification term
Cons
- Requires CBSPD's CSPDT, not HSPA's CRCST
- 12 to 24 months of experience needed
- Paper application and quarterly testing windows
Rank 9
CBSPD CFER (Certified Flexible Endoscope Reprocessor)
CBSPD's entry-level exam for staff who reprocess flexible endoscopes.
cbspd.net7.5
out of 10
Best for: Endoscopy staff with a year of scope work or a short endoscopy course
CBSPD's CFER, listed on its site as the GI Scope exam, certifies people who clean, disinfect, sterilize, store and distribute flexible endoscopes and accessories. CBSPD treats it as entry-level testing for minimum competency, and its workplace scope runs from ambulatory surgery centers and endoscopist offices to hospitals of all sizes. Requirements changed in 2022. You now need one of: 12 months processing flexible endoscopes; an endoscopy technician course of at least 16 hours plus 6 months in allied health doing endoscopy work; an 8-hour course plus 6 months processing scopes; or 12 months as a GI or endoscopy sales representative. Each route needs manager or instructor sign-off. The fee is $135 plus possible convenience fees, and initial certification lasts five years. Compared with HSPA's CER it costs $5 less and renews less often, but it asks for more experience and tests only in four one-week windows a year.
Standout feature
Accepts an 8-hour endoscopy course plus 6 months of scope work.
Use cases
Endoscopy techs at surgery centers
Certify after a year of scope reprocessing
Outcome: A five-year CFER credential
New GI staff
Combine a short course with 6 months on the job
Outcome: Eligibility through the course route
Key features
- No technician prerequisite
- Routes: 12 months processing flexible endoscopes, or a 16-hour course plus 6 months in endoscopy, or an 8-hour course plus 6 months processing scopes
- Sales route for 12 months as a GI or endoscopy representative
- Workplace scope includes surgery centers, clinics, endoscopist offices and hospitals
- Initial CBSPD certification valid for five years
Pros
- $135 fee, $5 below HSPA's CER
- Short course routes of 8 or 16 hours
- Five-year certification term
Cons
- Needs 6 to 12 months of experience, more than HSPA CER's three months
- Paper application only
- Quarterly one-week exam windows
Rank 10
CareerStep Sterile Processing Technician Program
A self-paced online program that prepares students for HSPA's CRCST exam, with exam fees included.
careerstep.com7.3
out of 10
Best for: Students who want an all-in-one online program with exam fees bundled
CareerStep's Sterile Processing Technician Program is an online, self-paced course built around HSPA's CRCST exam. The curriculum goes beyond sterile processing itself: alongside foundations such as aseptic technique, infection prevention, HIPAA and safety standards, it includes digital technology skills, comprehensive medical terminology, and anatomy and physiology. CareerStep says the price covers training, career support and coaching, plus certification prep materials and exam fees, with help available by phone, live chat and email. Its page is also clear about what comes after the exam: you need 400 hours of on-the-job experience within 6 months to be fully certified. The drawback is cost. At $3,199 for full program access it costs more than three times U.S. Career Institute's pay-in-full price and about nine times Purdue's no-books course, and the extra spend mainly buys the broader curriculum and bundled fees.
Standout feature
Bundles exam fees with medical terminology and anatomy courses.
Use cases
New healthcare students
Learn medical terminology and anatomy along with sterile processing
Outcome: Broader preparation before the CRCST exam
Learners using employer or workforce funding
Buy one package with exam fees included
Outcome: A single invoice for training and exam
Key features
- Prepares students to sit for HSPA's CRCST exam
- Includes training, career support, coaching, certification prep materials and exam fees
- Self-paced and fully online
- Courses cover sterile processing foundations, medical terminology, and anatomy and physiology
- Support by phone, live chat and email
Pros
- Exam fees included in the price
- Broader curriculum, including anatomy and medical terminology
- Live chat support in addition to phone and email
Cons
- $3,199 is the highest price in this list
- 400 hands-on hours still have to be earned on the job
- Program length is not published on the overview page
Frequently asked questions
+Which sterile processing certification is best?
HSPA's CRCST is the best sterile processing certification for most technicians. It is accredited by ANAB and NCCA, offered year-round at Prometric centers and costs $140, though it requires 400 hands-on hours before testing or within 6 months after.
+What is the best certification for a sterile processing technician?
For an entry-level technician, the best certification is HSPA's CRCST, with CBSPD's CSPDT as the main alternative. CSPDT costs $135, accepts a passed training course as eligibility, and lasts five years before recertification.
+How much does the CRCST exam cost?
The CRCST exam costs $140, according to HSPA's 2026 Certification Handbook. That fee includes a $25 non-refundable submission fee, and keeping the credential costs $50 a year plus 12 CE credits.
+Can I take the CRCST exam without experience?
Yes, through provisional certification. HSPA lets you pass the exam first and complete the 400 required hands-on hours within 6 months, after which you hold full CRCST status.
+What is the difference between CRCST and CSPDT?
CRCST comes from HSPA and CSPDT from CBSPD; both are entry-level sterile processing technician credentials. CRCST costs $140, tests year-round and renews yearly, while CSPDT costs $135, tests in four one-week windows a year and lasts five years.
+Do I need a training course to get certified in sterile processing?
No. HSPA states courses are not a prerequisite for its certifications, and CBSPD accepts work experience instead of a course. A course is one of CBSPD's four eligibility routes for CSPDT, and options such as Purdue's $350 course help with exam prep.
+Which certification should I get after CRCST?
Most CRCST holders add HSPA's CIS for instruments or CHL for management, each for $140. Both require current CRCST and renew with it under one $50 yearly fee, with 6 extra CE credits a year.
About this list
Updated November 11, 2026 by the Mojolin research desk. Mojolin is self-funded
Questions or corrections: editorial@mojolin.com
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