Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. UUU, Tbl. 39 Table 39 to Subpart UUU of Part 63.—Continuous Compliance With Work Practice Standards for HAP Emissions From Bypass Lines

1. Option 1: Flow indicator, level recorder, or electronic valve position monitor.

Monitoring and recording on a continuous basis or at least every hour whether flow is present in the bypass line; visually inspecting the device at least once every hour if the device is not equipped with a recording system that provides a continuous record; and recording whether the device is operating properly and whether flow is present in the bypass line.

2. Option 2: Car-seal or lock-and-key device

Visually inspecting the seal or closure mechanism at least once every month; and recording whether the bypass line valve is maintained in the closed position and whether flow is present in the line.

3. Option 3: Solid blind flange

Visually inspecting the blind at least once a month; and recording whether the blind is maintained in the correct position such that the vent stream cannot be diverted through the bypass line.

4. Option 4: Vent to control device

Monitoring the control device according to appropriate subpart requirements.

5. Option 1, 2, 3, or 4

Recording and reporting the time and duration of any bypass.