Table 3 to Subpart PPP of Part 63—Group 1 Storage Vessels at Existing and New Affected Sources
| Vessel capacity
(cubic meters) | Vapor pressure a (kilopascals) |
|---|---|
| 75 ≤ capacity <151 b | b ≥13.1 |
| 38 ≤ capacity <151 c | c ≥6.9 |
| capacity ≥151 | ≥5.2 |
| a Maximum true vapor pressure of total organic HAP at storage temperature. | |
| b Beginning no later than the compliance dates specified in § 63.1422(h), these vessel capacity and vapor pressure criteria no longer apply. | |
| c Beginning no later than the compliance dates specified in § 63.1422(h), these vessel capacity and vapor pressure criteria apply. |
[91 FR 13185, Mar. 18, 2026]