The first question a lab owner asks about ISO/IEC 17025 is usually “what will it cost?” The accreditation body’s fees are published, so that part has a real answer. The rest of the cost depends on the lab, and it is the larger part.
This piece uses CALA’s fee schedule, effective 1 January 2025 (CALA P02-02). CALA states its fees are “subject to change without notice”, so check the current version before you budget.
CALA’s fees
| Fee | Amount |
|---|---|
| Application review, new lab (one time) | $970 + $107 per appendix |
| Annual accreditation maintenance | $4,805 + $107 per appendix |
| Assessor travel and accommodation | actual cost; $1,000 deposit per assessor, invoiced two months before |
| Assessor development fee | $155 per assessor per day |
| Pre-assessment (optional) | $1,630 + assessor expenses |
| Scope extension | $540 + $189 per appendix |
| Institutional membership (optional) | $600 per year |
An “appendix” is one accredited method on the scope. The first year’s maintenance fee is prorated from the month accreditation is granted; the per-appendix part is not (P02-02, section 3.2).
CALA’s own worked example: five methods
CALA’s schedule includes an example for a lab with five appendices (section 3.12):
- New lab, first assessment: application review $1,505, plus prorated maintenance of $2,140 if accreditation is granted with four months of the year left, for $3,645
- Every year after: $4,805 + $535 = $5,340, in assessment years and non-assessment years alike
Plus assessor travel and the assessor development fee in years with a visit. After the first year, visits fall at one year (surveillance) and then every two years (CALA A06, section 4.4.1).
The costs the fee schedule does not show
I am not going to put numbers on these, because they depend on your scope, your instruments and your suppliers, and an invented number is worse than none. But each one is real, and for most labs together they are larger than CALA’s fees.
The standard. CALA requires proof that you have bought ISO/IEC 17025:2017 before it schedules anything (CALA P04-03, section 5).
Proficiency testing. For common analytes, CALA requires two PT studies a year, with four samples per round, from an accredited PT provider (CALA P02-03, section 3.2.1). Budget this per analyte group, every year.
Reference materials and calibration. CALA’s traceability policy asks for certified reference materials from a competent producer where available, and external calibration by a competent laboratory, with a documented recalibration interval that “may be extended” but “cannot be eliminated” (CALA A61).
Validation and uncertainty. Every method on the scope needs validation or verification records and a measurement uncertainty estimate, from more than a single day’s data (CALA P19-01). For a lab with good QC data, the uncertainty can often be estimated from what it already has. For a lab without, this is weeks of analyst time.
Running the system. Internal audits, management reviews, training records with effectiveness checks, competence requirements for each position, document control. This is mostly staff time, and it continues every year.
Keeping the scope alive. Each accredited method must be run on a real-matrix sample at least every six months (A06, section 4.3.3). A method with little client demand still costs you that run, plus its PT, every year.
How to keep the cost down
- Start with a small scope. Every appendix adds $107 a year and a PT obligation. Accredit the methods clients ask for, and extend later.
- Use the QC data you already have for uncertainty. A top-down estimate from intermediate precision and bias is accepted practice, and the Nordtest handbook shows how.
- Consider a pre-assessment if you are unsure you are ready. If CALA’s lead assessor judges a lab not ready from the document review, the assessment can be postponed, and the lab “may incur any costs related” to that (A06, section 4.3.6).
- Look at the membership if you run several PT schemes: CALA lists reduced PT and training fees for members.
Sources
- CALA P02-02, Program description: fee schedule, revision 1.32, effective 1 January 2025.
- CALA A06, Accreditation program, policies and procedures, revision 1.16.
- CALA P04-03, Application for new accreditation, revision 2.2.
- CALA P02-03, Proficiency testing policy for accreditation, revision 2.2.
- CALA A61-01, Traceability policy; CALA P19-01, Measurement uncertainty policy, revision 2.1.
- Nordtest TR 537, Handbook for calculation of measurement uncertainty in environmental laboratories, edition 4, 2017.
For the process itself, see the nine steps to CALA accreditation. If you want a rough sense of how much validation and uncertainty work your scope needs, tell me the methods on LinkedIn and I will tell you where I expect the time to go.
Common questions
- How much does CALA accreditation cost?
- Under CALA's fee schedule effective January 2025: a one-time application review fee of $970 plus $107 per appendix (method), and an annual maintenance fee of $4,805 plus $107 per appendix. Assessor travel is extra, with a $1,000 deposit per assessor two months before the visit, plus a $155 per assessor-day development fee. Fees are subject to change.
- What does ISO 17025 accreditation cost for a lab with five methods?
- CALA's own worked example for five appendices is $3,645 in the first year for a new lab granted accreditation with four months of the year remaining, then $5,340 per year, in both assessment and non-assessment years, plus assessment travel and assessor development fees.
- What costs are not in the accreditation fee?
- The purchase of ISO/IEC 17025 itself, proficiency testing fees, certified reference materials, external calibration of equipment, the time to validate methods and estimate measurement uncertainty, internal audits, management reviews, and staff training and records. For most labs these exceed the accreditation body's fees.
- Is a CALA pre-assessment worth it?
- It costs $1,630 plus assessor expenses and gives a document review and site visit showing how ready the lab is. CALA states that it does not give direct advice on how to meet the requirements. It is most useful when the lab is unsure whether it is ready, because a failed readiness review can postpone the real assessment.
- Does CALA membership reduce costs?
- An institutional membership is $600 a year and gives reduced fees on CALA training and on proficiency testing samples from Proficiency Testing Canada, according to CALA's fee schedule.