According to WorkSafeBC's The Certificate of Recognition Program: Standards and Guidelines, page 36:
We recognize that employers may not be in NOM currently. Maintenance audits can be performed at any time of the year, and our S&G requires that they are completed prior to December 31. Therefore, employers have until the end of the year to complete their maintenance audit.
Please keep in mind, however, that the Manufacturing Safety Alliance of BC is now forecasting a backlog of audits in Q3 and Q4. Therefore, we recommend that employers try to work with their normal anniversary date for the maintenance audit. If this is not possible, please contact the OSSE Department to discuss a time-frame for your maintenance audit that will be suitable to both parties to ensure a timely QA process.