AUTHORITY: Implementing and authorized by Sections 8-301, 8-302, 8-501, 9-201, 10-101, 10-107, 19-110(e)(3) and 19-115(b)(1), (b)(4) and (b)(5) of the Public Utilities Act [220 ILCS 5/8-301, 8-302, 8-501, 9-201, 10-101, 10-107, 19-110(e)(3) and 19-115(b)(1), (b)(4) and (b)(5)].ILLINOIS COMMERCE COMMISSION
a) A utility shall install all correctors in accordance with the recommendations of AGA Gas Measurement Manual, Electronic Corrector, Part No. 15 (May 1999), XQ9901.
b) A utility that installs an electronic or mechanical corrector shall verify the proper operation of the corrector at least every 60 months.
1) Verification temperatures are 32°F and 75°F/or flowing gas temperature with a tolerance of ± 2.5°F.
2) Verification pressures are zero and flowing pressure with a tolerance of ± 1%.
c) A utility shall maintain the most recent 10 years of inspection records.