Quick facts
- Most jurisdictions do not write a retention period into their sterilization or reprocessing rule. Only a minority attach a number directly to the monitoring record itself.
- Ontario dental practices: 10 years. The RCDSO log book requirement runs to "at least 10 years from the date of the last entry in that record", and the CDHO IPAC Guidelines state the same 10 years for sterilization monitoring test results under the CDHO Records Regulation.
- Quebec dental practices: 5 years from the date of the last entry in the dossier, restated in the Ordre des dentistes du Québec record-keeping guide.
- British Columbia: 16 years of general patient record retention for entries dated on or after 1 June 2013 — but the sterilizer record itself carries no stated period.
- California is the only jurisdiction in this table with a sterilization-specific retention number: 12 months for documented biological indicator results.
- The other four US states examined set general dental or patient record periods (New York 6 years, Texas 5 years, Florida 4 years, Pennsylvania 5 years) and say nothing specific about sterilization logs.
- No number in this article is Canada-wide or North America-wide. Each row is the rule of the named jurisdiction only.
Retention is the part of a sterilization programme that fails quietly. Nobody notices a missing log until a surveyor, a college inspector or a plaintiff's lawyer asks for a record from three years ago and nobody can produce it. The complication is that "how long do we keep sterilization records" has no single answer even inside one country, because the number usually comes from a general record-keeping rule rather than from the sterilization rule itself.
This article is a lookup table, jurisdiction by jurisdiction, with the instrument and the locator for each figure so that any row can be checked at source. Rows are current as at September 2026.
Why is the retention number not where most clinics expect it?
There are three distinct legal patterns, and confusing them is the origin of most bad retention advice:
- An explicit period attached to the reprocessing record. The jurisdiction names the sterilization log, the monitoring record or the traceability register and gives it a period. Ontario (10 years) and Quebec (5 years) both work this way for dental practices. California attaches 12 months specifically to biological indicator results.
- No period attached to the record, so the general clinical record rule supplies the floor. British Columbia, Nova Scotia, New York, Texas, Florida and Pennsylvania follow this pattern. The sterilization log is a practice record, so it inherits the practice record period. The number is real, but it is a clinical-records number, not a sterilization number.
- No number at all. The instrument requires the record to exist and leaves the period to the clinic's own policy and applicable legislation. Alberta's medical device reprocessing standard and the BC sterilizer log requirement both read this way.
Pattern 3 is the one that catches suppliers and consultants out. Where no number is set, a clinic's written policy becomes the standard against which its records are judged — which means an undocumented policy is worse than a short one.
Canada: retention by province and setting
| Jurisdiction and setting | Instrument | Period attached to the reprocessing, monitoring or traceability record | General clinical record period | Locator |
|---|---|---|---|---|
| Ontario — dental practice | Royal College of Dental Surgeons of Ontario, IPAC Standard (v3) | At least 10 years from the date of the last entry in the record | The log book rule is the reprocessing record rule | Standard p.25; self-audit form p.9 carries the check item "Logbook kept for 10 years after last entry" |
| Ontario — dental hygiene practice | CDHO Records Regulation, as applied in the CDHO IPAC Guidelines (last revision 2 February 2024) | 10 years for all sterilization monitoring test results, and 10 years for maintenance and repair documentation of cleaning and sterilization equipment | Set by the CDHO Records Regulation | IPAC Guidelines, reprocessing and biological indicator sections |
| Quebec — dental practice | Ordre des dentistes du Québec, record-keeping practice guide (August 2024), restating RLRQ c. D-3, r. 16 | The dossier rule is the operative one: at least 5 years following the date of the last entry | 5 years following the date of the last entry | Guide section on retention and destruction, p.25 |
| British Columbia — dental practice | BC College of Oral Health Professionals, infection prevention and control guidance; CDSBC Dental Recordkeeping Guidelines | No period stated for the sterilizer record, which must nonetheless be kept | 16 years from the date of last entry for records whose most recent entry was created on or after 1 June 2013; 31 years for earlier entries, or until 1 June 2029, whichever comes first; minors 16 years | Recordkeeping Guidelines p.14; sterilizer record requirement in the IPC guidance |
| Alberta — medical and dental clinics | College of Physicians and Surgeons of Alberta, Medical Device Reprocessing Standards (2022) | No number. Records of reprocessing are retained "according to the clinic's policy and applicable legislation" | Not set by this instrument | Standards s.11.5 |
| Alberta — oral health settings | Collaborative infection prevention and control guidelines of the Alberta oral health colleges (2024) | No number. A sterilizer process logbook documenting each load is required | Education and process records "retained as legally prudent" | Sterilizer process documentation section |
| Nova Scotia — dental practice | Provincial Dental Board of Nova Scotia, Dental Recordkeeping Guidelines | No separate period for sterilization records | At least 10 years from the date of last entry; minors 10 years from age 19 | Section on retention of records |
| British Columbia — residential care facility | Residential Care Regulation, B.C. Reg. 96/2009 | The regulation contains no sterilization or reprocessing record provision | At least 1 year for records under the regulation; 2 years for records for each person in care, from discharge | s.92(1) and s.92(5) |
| Nova Scotia — home for special care | Homes for Special Care Regulations, N.S. Reg. 127/1977 (as amended) | No sterilization record provision | Entries in a resident record may not be destroyed, altered, defaced or obliterated within 5 years after the resident leaves the home or dies | s.23(3) |
Two rows deserve a note before the table is used operationally. British Columbia's 16 and 31 year figures come from the Limitation Act, not from an infection control rule, so they apply to the record as a whole rather than to the sterilizer log alone. And the Nova Scotia residential care row is a record-protection rule rather than a retention schedule: it prohibits destruction within five years, which is a floor, not a disposal date.
United States: retention by state
| State | Instrument | Retention period | Is it a sterilization-specific rule? |
|---|---|---|---|
| California | Cal. Code Regs. tit. 16, section 1005(b)(17) | 12 months — test results "documented and maintained for 12 months" | Yes. The clause governs verification of the sterilization cycle by biological indicator, with weekly testing as its baseline |
| New York | 8 NYCRR section 29.2(a)(3) | At least 6 years for all patient records; minor patients 6 years and until one year after the patient reaches 21 | No — general patient records under the professional conduct rules |
| Texas | 22 Tex. Admin. Code section 108.8(b) | Not less than 5 years from the last date of treatment; for patients under 18, until age 21 or five years from last treatment, whichever is longer | No — dental records generally; the rule's definition of dental records does not name sterilization logs |
| Florida | Fla. Admin. Code R. 64B5-17.002(2) | At least 4 years from the date the patient was last examined or treated | No — the written dental record |
| Pennsylvania | 49 Pa. Code section 33.209(b) | Minimum of 5 years from the date of the last dental entry | No — the patient dental record |
The range is the point. A twelve-month biological indicator retention requirement in California and a sixteen-year clinical record expectation in British Columbia are both described in the market as "standard practice", which is why a clinic copying a retention policy from a supplier blog can end up eleven months short in one direction or eleven years over in the other.
Which jurisdictions attach a number to the record itself?
This is the practical question behind the two tables. Of the fourteen jurisdiction-and-setting rows above, only three attach a period to the monitoring or traceability record rather than to the clinical file generally:
| Jurisdiction | Number | What it attaches to |
|---|---|---|
| Ontario (dental and dental hygiene) | 10 years | The sterilization log book and the sterilization monitoring test results |
| Quebec (dental) | 5 years | The dental dossier, which is where the reprocessing documentation sits |
| California | 12 months | Documented biological indicator test results |
Everything else in the table reaches its number through a general record rule or sets no number at all. That is not a gap in the law so much as a difference in drafting technique — but it changes the operational question from "what does the regulator require" to "what does our own written policy say, and does it exceed the clinical record floor in our province".
What about care homes and hospitals rather than dental clinics?
Facility-side rules are thinner than most procurement teams expect. The British Columbia Residential Care Regulation, which governs licensed residential care facilities, contains no sterilization or reprocessing record provision at all: the words do not appear in the regulation, which sets a one-year default for records under it and a two-year period for records for each person in care. Nova Scotia's Homes for Special Care Regulations take a different approach and simply prohibit destroying an entry in a resident record within five years after the resident leaves or dies.
For facilities that reprocess reusable medical devices, the operative expectations therefore arrive from other directions: the manufacturer's instructions for use for each device and each sterilizer, the applicable Canadian medical device reprocessing standard, and the facility's own medical device reprocessing policy. In Ontario long-term care, the infection prevention and control duties in the Fixing Long-Term Care Act, 2021 and O. Reg. 246/22 require the programme, its monitoring cadence and its written evaluation records, but they do not set a record retention period for sterilization logs.
How to read a retention claim in supplier documentation
Four claims circulate widely and are wrong in the same way — by taking one jurisdiction's number and presenting it as regional:
| Claim | What is actually true |
|---|---|
| "Sterilization records must be kept 10 years in Canada" | 10 years is the Ontario dental and dental hygiene requirement. Quebec is 5 years. Alberta sets no number. There is no Canada-wide figure |
| "Sterilization records must be kept 7 years" | Seven years is the American medical record convention, and it is not a sterilization record rule in any jurisdiction in this table |
| "Biological indicator results must be kept 12 months" | Twelve months is California's rule. Ontario requires 10 years for the same records, which is a tenfold difference in exposure |
| "Keep records for the life of the sterilizer" | Not a legal period. Ontario's clock runs from the date of the last entry, not from the date the sterilizer is retired |
The practical safeguard is a one-line audit question: for every retention number in your policy, which instrument and which section does it come from? A number with no citable section is usually a number copied from somewhere else.
What a three-sterilizer Ontario dental clinic actually has to keep
Applying the Ontario rows to a concrete practice makes the shape of the obligation clear.
| Record | Retention clock | Source |
|---|---|---|
| Sterilizer log book, including daily monitoring and cycle records | 10 years from the date of the last entry | RCDSO IPAC Standard |
| Biological indicator, chemical indicator and physical parameter test results | 10 years, logged, evaluated after each cycle and signed by the responsible person | CDHO Records Regulation, as stated in the CDHO IPAC Guidelines |
| Maintenance and repair documentation for cleaning and sterilization equipment | 10 years | CDHO Records Regulation |
| Package labelling: date, sterilizer used, load or cycle number, contents where not visible, and the responsible person's initials | Follows the log book record it belongs to | RCDSO record-keeping provisions |
The clock runs from the last entry, so a clinic that sterilizes every working day is effectively maintaining a rolling ten-year archive that never closes. For a practice reviewing its storage arrangements, the practical question is whether the archive is retrievable — a ten-year obligation is only met if the tenth year can be produced.
Related reading
- Canada versus US spore testing frequency: which rule applies where
- Biological indicator testing frequency by facility type: dental clinics, long-term care and laboratories
- CSA Z314.15: storing sterile devices
- Sterilization modalities compared: ISO 17665, ISO 11135 and ISO 11137
- Spaulding classification versus Canadian reprocessing rules
- free Ontario sterilization compliance log
Frequently Asked Questions
How long must sterilization records be kept in Canada?
There is no single Canadian figure. Ontario requires the sterilization log book to be maintained for at least 10 years from the date of the last entry under the RCDSO IPAC Standard, and the CDHO IPAC Guidelines state 10 years for sterilization monitoring test results under the CDHO Records Regulation. Quebec's dental record-keeping guide applies a 5-year period from the date of the last entry. British Columbia states no period for the sterilizer record but requires general patient records to be kept 16 years from the date of last entry for entries made on or after 1 June 2013. Alberta sets no number, leaving records of reprocessing to the clinic's policy and applicable legislation.
Which province keeps sterilization records the longest?
On the reprocessing record itself, Ontario is the longest in this table at 10 years. On the clinical record as a whole, British Columbia is longer: 16 years from the date of the last entry for records whose most recent entry was created on or after 1 June 2013, and 31 years for earlier entries or until 1 June 2029, whichever comes first. Because the British Columbia period derives from the Limitation Act, it applies to the patient record generally rather than to the sterilization log as a separate document.
Do US states require sterilization records to be kept longer than Canada?
No. California is the only state in this table with a sterilization-specific retention rule, and it requires documented biological indicator test results to be maintained for 12 months — shorter than Ontario's 10 years and Quebec's 5 years for the equivalent records. New York (6 years), Texas (5 years), Florida (4 years) and Pennsylvania (5 years) set general dental or patient record periods that do not mention sterilization logs at all.
Is 7 years the standard retention period for medical records?
Seven years is a common American convention for medical and dental records, but it is not the sterilization record rule in any jurisdiction covered here. The jurisdictions that do set a number for sterilization records sit on either side of it: California at 12 months, Quebec at 5 years, and Ontario at 10 years. Retention policies copied from United States medical-record guidance should be checked against the provincial or state instrument that actually applies to the practice.
What happens if no rule states a retention period?
Where the instrument requires a record but sets no period — as in Alberta's medical device reprocessing standard and British Columbia's sterilizer log requirement — the clinic's own written policy becomes the standard against which its records are assessed. That makes the policy document itself the compliance artefact. A policy with no stated period, or one that cannot be shown to every staff member who keeps the log, leaves the practice with an obligation and no defensible definition of when it has been met.
Does the retention clock start when the sterilizer is retired?
No. The periods in this table run from the date of the last entry in the record, not from the date a sterilizer is decommissioned or replaced. An Ontario practice that retires a sterilizer on 31 December still holds that unit's log book for another ten years from the final entry, which is why log books are normally archived by sterilizer identifier rather than by machine location.
Do these periods apply to long-term care homes as well as dental clinics?
Not in the same way. The Ontario 10-year figure is a dental college requirement. Ontario long-term care homes operate under the Fixing Long-Term Care Act, 2021 and O. Reg. 246/22, which require an infection prevention and control programme with shift-level monitoring records and a written annual programme evaluation, but do not set a sterilization record retention period. Facility-side provisions such as British Columbia's Residential Care Regulation contain no sterilization record requirement at all, while Nova Scotia's Homes for Special Care Regulations prohibit destroying a resident record entry within five years after the resident leaves or dies.
CliniEco Medical supplies sterilization monitoring and infection-control consumables to Canadian clinics, laboratories and care homes — MDEL #35334. Practices building a retention-compliant monitoring file typically standardise on 24-hour self-contained biological indicators read in a 24-well dry-block incubator, with Class 4 dual-indicator sterilization pouches providing the load labelling that retention rules assume. A 25-pack of 24-hour rapid-readout biological indicators supports clinics evaluating readout times before standardising, institutional purchasing runs through the wholesale account, and the wider sterilization monitoring range covers indicator, tape and record-keeping supplies. A five-pack biological indicator trial pack is available for practices that want to run a short series of spore tests before committing to a full case.
Sources
- Ontario — Royal College of Dental Surgeons of Ontario, infection prevention and control resources including the IPAC standard and self-audit review form
- Ontario — College of Dental Hygienists of Ontario, Infection Prevention and Control Guidelines (last revision February 2024)
- Quebec — Ordre des dentistes du Québec, practice guide on dental record keeping (August 2024)
- Quebec — Regulation respecting the keeping of offices and records and the cessation of practice, RLRQ c. D-3, r. 16
- British Columbia — CDSBC Dental Recordkeeping Guidelines, retention of records
- British Columbia — infection prevention and control guidelines, sterilizer documentation
- British Columbia — Community Care and Assisted Living Act, Residential Care Regulation, B.C. Reg. 96/2009
- Alberta — College of Physicians and Surgeons of Alberta, Medical Device Reprocessing Standards
- Alberta — collaborative oral health infection prevention and control guidelines
- Nova Scotia — Provincial Dental Board recordkeeping guidelines
- Nova Scotia — Homes for Special Care Regulations
- California — Dental Board of California, minimum standards for infection control, 16 CCR section 1005
- New York — Rules of the Board of Regents, part 29, unprofessional conduct, section 29.2
- Texas — 22 Tex. Admin. Code section 108.8, records of the dentist
- Florida — Florida Board of Dentistry, retention of patient records under rule 64B5-17.002
- Pennsylvania — 49 Pa. Code section 33.209, preparing, maintaining and retaining patient records
- CliniEco Medical — sterilization compliance hub
- CliniEco Medical — sterilization monitoring collection
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