25 Pa. Code § 137.5 – Implementation of emission reduction procedures.

(a) If the Department declares that a forecast, alert, warning or emergency level exists in an area of this Commonwealth, the person responsible for the operation of a source whose emissions may affect air quality in that area shall implement the standby plan required by § 137.4 (relating to standby plans), for the source.
(b) A person responsible for the operation of a source not required to prepare a standby plan in accordance with § 137.4 shall, when the Department declares that a forecast, alert, warning or emergency level exists in an area of this Commonwealth in which the source is located, implement applicable emission reduction procedures in accordance with the objectives of § § 137.11—137.14.

The provisions of this § 137.5 adopted January 27, 1972, effective January 28, 1972, 2 Pa.B. 383.