Section 63.7912 - What are my inspection and monitoring requirements for separators?(a) If you use a floating roof according to § 63.7910(b)(1) , you must meet requirements in paragraphs (a)(1) and (2) of this section. (1) Measure the seal gaps at least annually according to the requirements in § 63.1047(b)(1) .(2) Visually inspect the floating roof at least annually according to the requirements in § 63.1047(b)(2) .(b) If you use a cover vented to a control device according to § 63.7910(b)(1) or (2) , you must meet requirements in paragraphs (b)(1) and (2) of this section. (1) You must visually inspect the cover and its closure devices for defects according to the requirements in § 63.1047(c) .(2) You must monitor and inspect the closed vent system and control device according to the requirements in § 63.7927 that apply to you.(c) If you use a pressurized separator that operates as a closed system according to § 63.7910(b)(3) , you must visually inspect each pressurized separator and closure devices for defects at least annually to ensure they are operating according to the design requirements in § 63.1045(b) , with the exceptions specified in § 63.7910(b)(3) .68 FR 58190, Oct. 8, 2003, as amended at 85 FR 41705, July 10, 2020