Reference document for setting oven calibration frequency

Suppose temperature is a CCP.

Can someone share a reference document from anywhere in North America that states the requirement and frequency for oven calibration.

Thanks!

You won't find one

You need to determine your calibration frequency (minimum is yearly) based on your process and risks

CFIA and GFSI all require a minimum of annually

Paragraph 53(g): Use, maintenance, and calibration of conveyances or equipment  (SFCR)

• The conveyances or equipment you use to manufacture, prepare, store, package or label food or slaughter food animals are used, maintained and, if necessary, calibrated
  • according to the manufacturer's instructions; and

in a manner that does not present a risk of contamination of the food

https://inspection.c...92049?chap=0#c3