§ 98.147 Records that must be retained.
In addition to the information required by § 98.3(g), you must retain the records listed in paragraphs (a) through (d) of this section.
(a) If a CEMS is used to measure emissions, then you must retain the records required under § 98.37 for the Tier 4 Calculation Methodology and the following information specified in paragraphs (a)(1) and (a)(2) of this section:
(1) Monthly glass production rate for each continuous glass melting furnace (tons).
(2) Monthly amount of each carbonate-based raw material charged to each continuous glass melting furnace (tons).
(b) If process CO2 emissions are calculated according to the procedures specified in § 98.143(b), you must retain the records in paragraphs (b)(1) through (b)(5) of this section.