CAP accreditation · College of American Pathologists Laboratory Accreditation Program
CAP accreditation readiness for laboratories that want the peer inspection to hold no surprises.
The College of American Pathologists accredits laboratories after a peer inspection against its own checklists. Sterling's expert and experienced consultants get your laboratory ready for it: the checklist gaps closed, the method and quality records in order, the self-inspection done properly and your team confident in front of the inspectors, in 60+ countries. We ensure successful accreditation for our clients.
- Fixed scope, one proposal: consulting, Effivity software, Sterling Academy access and internal auditor training, as applicable to your standard, in one proposal
- A team of expert and experienced laboratory quality consultants, preparing laboratories across sectors and countries since 2003
- The Sterling Promise: 100% on-time completion, 100% success, 8,100+ client engagements. Sterling does not accredit; the CAP inspects and decides
8,100+ client engagements in 60+ countries.
CAP accreditation client experienceWhat it is
What is CAP accreditation and what is it used for?
CAP accreditation is granted by the College of American Pathologists through its Laboratory Accreditation Program. The programme rests on the CAP's Standards for Accreditation and on detailed checklists that set out what inspectors will look for, from test method validation and verification to proficiency testing, quality control, personnel and records. Laboratories are inspected by peers, people who work in laboratory medicine themselves, rather than by a certification auditor.
In the United States the CAP is approved by the Centers for Medicare & Medicaid Services as an accreditation organisation, and its checklists track the federal CLIA rules. Outside the United States, laboratories choose CAP accreditation because hospitals, research sponsors, insurers and referring clinicians recognise it as a demanding benchmark. The CAP runs a dedicated route for laboratories outside the USA.
Current edition. The CAP revises its checklists and releases a new edition every year. Recent editions have added requirements on digital pathology and patient self-collection, and the 2024 edition carried the CLIA final rule changes for US laboratories. Your preparation is set against the edition the CAP applies at your inspection, and every annual release is reviewed for changes that touch your disciplines. The CAP also runs a separate CAP 15189 programme; if ISO 15189 is what your customers ask for, start with our ISO 15189 accreditation page.
Who it is for
Who needs CAP accreditation?
The Laboratory Accreditation Program is built for medical laboratories, and the CAP offers a system inspection option for laboratory networks. Laboratories come to Sterling for CAP readiness from four starting points:
- A hospital, sponsor or referral partner expects it. Research sponsors, international patients and referring hospitals may ask for CAP accreditation by name. Confirm exactly which programme and which disciplines they mean before the work begins.
- A tender or payer contract lists it. Some procurement documents for diagnostic services name CAP accreditation as a qualifying condition or a scoring criterion.
- A regulator or health authority recognises it. In the United States, CAP accreditation is one way to meet CLIA oversight; elsewhere, some authorities and insurers give weight to it. Check what your own authority accepts.
- A group standardises its laboratories. A laboratory chain or hospital group wants every site working to the same checklists, with one quality approach and one set of records.
Accreditation reflects how the laboratory actually runs on inspection day and every day after. The value lies in the practice behind it, not the certificate on the wall.
Requirements
What are the main CAP accreditation requirements?
The CAP publishes its Standards for Accreditation and a set of checklists; the inspection tests your laboratory against the checklist requirements that apply to your disciplines. The map below is our plain-language grouping, not the CAP's own checklist titles. Your readiness work follows the current checklist text, requirement by requirement.
- Standards for Accreditation: the overarching principles that the checklists put into detail.
- Test method validation and verification: evidence that each method performs as intended in your laboratory before patient results are released.
- Proficiency testing: enrolment in suitable external programmes, review of every result and action on unacceptable ones.
- Quality control and quality management: routine control of examinations, documented review and a quality programme that finds and fixes problems.
- Patient safety and specimen handling: from collection, including patient self-collection where offered, to identification, reporting and retention.
- Personnel and competence: qualifications, training and ongoing competence assessment for everyone who performs testing.
- Discipline-specific practice: requirements for each area you test in, including digital pathology where it is used.
- Self-inspection: the laboratory inspects itself against the checklists and records the outcome on the CAP's verification form.
What does useful CAP inspection evidence look like?
Validation and verification studies you can explain, proficiency testing results with signed reviews and corrective action, quality control records with trends someone actually looked at, competence assessments on file for each person and method, and a self-inspection that found real issues and closed them. We help your team assemble exactly this evidence, and keep the quality records in Effivity so they are current whenever an inspector asks.
Accreditation process
How do you get CAP accreditation?
Build a laboratory that already meets the checklists, then let the CAP inspect it. Sterling prepares the laboratory; the peer inspection and the accreditation decision belong to the CAP.
- 01Confirm the programme and the scope.Decide on the Laboratory Accreditation Program or another CAP programme, and agree the disciplines, sites and tests that the application will cover.
- 02Gap analysis: compare the laboratory with the current checklists.Work discipline by discipline, keep what already meets the requirement and agree actions, owners and dates for the rest.
- 03Build the evidence.Complete validation and verification studies, put proficiency testing and quality control reviews on a routine footing, finish competence assessments and bring procedures and records up to date.
- 04Run a rigorous self-inspection.Inspect the laboratory against every applicable checklist requirement, as a peer inspector would, and close each finding with evidence.
- 05Apply, host the peer inspection and respond.Submit the application to the CAP, host its inspection team, correct any deficiencies within the time the CAP sets and await its decision; then keep the laboratory inspection-ready on the cycle the CAP sets.
Check the route before you sign anything. Only the College of American Pathologists grants CAP accreditation; no consultant or certification body can issue it on the CAP's behalf. You can confirm any laboratory's status in the CAP's Accredited Laboratory and Biorepository Directory on cap.org.
Cost
How much does CAP accreditation readiness cost?
Readiness costs depend far more on the state of your records than on the size of your building. A single-discipline laboratory with strong validation files needs a lighter programme than a multi-site service still building its quality records. Every Sterling proposal shows each component, and nothing is added later.
| Cost component | What affects it |
|---|---|
| Consulting and readiness | Disciplines and sites in scope, the gaps found in the gap analysis, and whether you choose Design™ or Drive™ |
| CAP programme fees | Set by the CAP for its programme, your laboratory and your inspection; paid to the CAP, not to Sterling |
| Technical work | Validation and verification studies, proficiency testing enrolment, calibration and any equipment or environment changes |
| Internal resources | Time from the laboratory director, section leads and testing staff for records, competence assessment and the self-inspection |
| Software and learning | Included in a Sterling engagement: Effivity for the quality records and Sterling Academy access for your people |
What moves the price
- The number of disciplines, tests and sites in scope
- How many methods lack validation or verification records
- Proficiency testing history and how it was reviewed
- The target date and your team's available time
What a Sterling proposal always shows
- Deliverables, assumptions and exclusions in writing
- CAP fees kept separate from our fee
- Milestones linked to deliverables
- One all-inclusive proposal for our work
Timeline
How long does CAP accreditation take?
Three things set the pace: how many methods need validation or verification work, how much proficiency testing and quality control history you can show, and when the CAP can schedule your inspection. As an estimate, a first accreditation typically takes nine to fifteen months from gap analysis to decision; a laboratory with strong records moves faster.
| Phase | What sets the pace |
|---|---|
| Scope and gap analysis | Access to section leads, method files and quality records |
| Evidence build | Validation and verification studies, competence assessments and procedure updates |
| Operating history | Proficiency testing events and quality control data accumulating under normal work |
| Application and inspection | The CAP's scheduling and the time needed to correct any deficiencies |
Your engagement
What your CAP readiness engagement includes
Sterling OS™ runs every engagement, and each phase has a laboratory meaning. Sterling does not accredit or inspect laboratories: the College of American Pathologists inspects your laboratory and makes the accreditation decision.
Design™: guided support
Your scientists close the gaps themselves; a Sterling consultant sets the method, reviews each study and record, and coaches the team through the self-inspection.
Drive™: managed support
The alternative to Design™ for busy laboratories: Sterling drafts procedures, validation templates and records with your section leads and runs the programme to the inspection.
Sustain™: after accreditation
Review of each annual checklist release, internal audits and preparation for the next inspection.
Automate™: Effivity
Your quality records run in Effivity, included with the engagement at no additional cost.
Training for your people
Internal auditor training, as applicable to your standard, and preferential Sterling Academy access, including complimentary awareness training for your people as part of the engagement.
Accreditation decisions remain with the College of American Pathologists.
Often combined with
Standards organisations pair with CAP accreditation
- 21 CFR Part 11 / EU Annex 1121 CFR Part 11 and Annex 11 compliance for GxP systems: requirements, validation, audit trails and e-signatures, with evidence ready for FDA and EU inspectors.
- ADHICS (Abu Dhabi)ADHICS compliance consulting for DoH-regulated healthcare entities in Abu Dhabi: patient information, systems and devices protected, with audit-ready evidence.
- EU IVDR 2017/746EU IVDR compliance consulting for IVD manufacturers: performance evidence, QMS, traceability and post-market follow-up prepared for your notified body.
- EU MDR 2017/745EU MDR compliance consulting for CE marking: QMS, technical documentation, traceability and post-market surveillance prepared for your notified body.
- FDA QMSR (21 CFR 820)FDA QMSR compliance consulting for device makers selling in the US: a quality management system ready for FDA inspection, wherever you manufacture.
- GMP (PIC/S, EU, WHO)GMP compliance consulting for medicine manufacturers: quality systems, batch records and controls ready for your national regulator's inspection on any day.
Effivity · ISO and GRC software, included in every engagement
How Effivity helps you fulfil, automate and simplify CAP accreditation requirements.
Every Sterling CAP readiness engagement includes Effivity, the ISO and GRC automation platform built by the Sterling group and used in 50+ countries. Your consultant sets up the workspace within the agreed scope, so documents, audits, nonconformities, complaints, supplier evaluations, calibration and training records sit in one place and stay current between inspections. Sterling consulting clients get their Effivity subscription included with the engagement, at no additional cost.

Scope, commitments and responsibilities
The disciplines and sites in scope, the laboratory director's responsibilities and the programme commitments recorded in one place.
Procedures under control
Procedures with versions, approvals and review dates, so staff always work from the current one.
Method records you can find
Studies, approvals and supporting data linked to each method, ready to show an inspector.
Results, reviews and actions
Each event logged with its review, and unacceptable results tracked through corrective action.
Training and competence
Training records and competence assessments per person, linked to Sterling Academy, with due dates flagged.
Calibration and maintenance
An equipment register with calibration and maintenance history and reminders before anything falls due.
Audits and findings
Self-inspection and internal audit programmes with findings, owners and closure evidence.
Nonconformities and complaints
Issues raised, investigated and closed with root cause, and trends visible to the laboratory director.
What this means at the inspection
When an inspector asks for a validation study, a proficiency testing review or a competence record, your team opens it on screen with its date, owner and evidence attached. After accreditation, Sustain™ runs in the same workspace, so the next inspection finds records that never went stale.
In your engagement
- Subscription included with the engagement, at no additional cost
- Configured by your Sterling consultant within the agreed scope
- Existing records migrated, not retyped
- Admin and user training for your team
- Modules for EMS, OHSMS, ISMS, FSMS and more when you integrate other standards
Sterling Academy · e-learning for laboratory teams
Give every member of the laboratory the quality grounding an inspection expects.
Sterling Academy offers e-learning with video lessons, practice checkpoints, a final exam and a numbered Certificate of Completion for each learner, verifiable online. Sterling consulting clients benefit from preferential Sterling Academy course access and special pricing through their Sterling consultant, including complimentary awareness training for their people as part of the engagement.
- Quality awareness for testing and support staff
- Internal auditor training, as applicable to your standard, as part of the engagement
- Training records that feed competence evidence
- New staff trained as they join
Keep exploring
Explore more about CAP accreditation
CAP accreditation resources
Services for CAP accreditation
Why Sterling
Want successful CAP accreditation? Come to Sterling.
Laboratories that pursue CAP accreditation are usually busy, regulated and short of spare hands. Sterling brings a structured readiness method and does the heavy lifting where you need it, so your scientists stay focused on patient results.
Laboratories in 60+ countries
Quality programmes delivered since 2003, with offices in 21 countries and one engagement team accountable across every site.
All-inclusive proposal
Consulting, Effivity, training and Academy access in one proposal, with CAP fees kept separate.
Records that work
Evidence built into daily laboratory routines, not assembled the week before the inspection.
Expert and experienced consultants
Consultants who understand laboratory quality and prepare your team to meet the checklists properly the first time.
The Sterling Promise
What our CAP accreditation success guarantee means
We stay with you until your agreed CAP accreditation outcome is achieved, supporting readiness, the self-inspection and the correction of any inspection deficiencies. Clear explanations, practical delivery, included software and staff learning turn the investment into lasting capability.
The engagement identifies the programme, scope, outcome and responsibilities. Your laboratory supplies accurate information and puts the agreed controls into use. The College of American Pathologists inspects the laboratory and retains its accreditation decision. Our commitment concerns the agreed readiness support, not a promise of every future contract award or error-free testing.
FAQs
Frequently asked questions about CAP accreditation
Is CAP accreditation the same as ISO 15189 accreditation?
No. The Laboratory Accreditation Program is the CAP's own programme, built on its checklists. The CAP also runs a separate CAP 15189 programme against the international standard; a laboratory can hold one, the other or both, depending on what its customers and regulators ask for.
Can a laboratory outside the United States get CAP accreditation?
Yes. The CAP accredits laboratories outside the USA and publishes guidance on what they should expect. Local licensing and health authority rules still apply alongside it, and Sterling works through both with your team.
What is a CAP self-inspection?
It is the laboratory's own inspection of itself against the applicable checklists, recorded on the CAP's verification form. Treated seriously, it is the best rehearsal for the peer inspection; treated as paperwork, it hides the gaps inspectors later find.
How often do the CAP checklists change?
Every year. The CAP releases a new checklist edition annually, and changes can add, revise or retire requirements. Accredited laboratories need a routine for reviewing each release and updating procedures before their next inspection.
Does Sterling accredit laboratories or carry out CAP inspections?
No. Sterling prepares laboratories. Only the College of American Pathologists grants CAP accreditation, and its peer inspectors carry out the inspection.
Keep exploring
More on CAP accreditation and related standards
More in Healthcare, medical devices & life sciences
Talk to a consultant
Prepare your laboratory for CAP accreditation.
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