Q777.  I have a unit that operates continuously and am not able to complete a calibration of the flow meter without disrupting normal operations. Can I postpone the calibration until the next scheduled maintenance?

A777. Changes have been made to 40 CFR 98.394(b) to make the equipment calibration requirements for petroleum products suppliers consistent with other Part 98 calibration requirements.  For units and processes that operate continuously with infrequent outages, it may not be possible to complete the calibration of a flow meter or other measurement device without disrupting normal process operation. In such cases, the owner or operator may postpone the calibration until the next scheduled maintenance outage. The best available information from company records may be used in the interim. Such postponements shall be documented in the monitoring plan that is required under §98.3(g)(5).

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Source: David Jacobson, 1/22/2014 (Subpart MM FAQs_01-15-2014_DJ.docx)

Approval / Publishing History: Version 1

Expiration: none

Relevant Subparts:  Subpart MM
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