---
kind: "section"
citation: "40 C.F.R. § 98.147"
title: "40"
number: "98.147"
heading: "Records that must be retained."
url: "https://uscodex.org/cfr/40/98.147"
---

# §98.147. Records that must be retained.


In addition to the information required by [§ 98.3(g)](/cfr/40/98.3.md?p=g), you must retain the records listed in [paragraphs (a) through (d)](#a..d) of this section.

- (a) If a CEMS is used to measure emissions, then you must retain the records required under [§ 98.37](/cfr/40/98.37.md) for the Tier 4 Calculation Methodology and the following information specified in [paragraphs (a)(1) through (3)](#a-1..a-3) of this section:
  - (1) **Monthly glass production rate for each continuous glass melting furnace, by glass type (tons).**
  - (2) Monthly amount of each carbonate-based raw material charged to each continuous glass melting furnace (tons).
  - (3) Monthly amount (tons) of recycled scrap glass (cullet) charged to each continuous glass melting furnace, by glass type.
- (b) If process CO2 emissions are calculated according to the procedures specified in [§ 98.143(b)](/cfr/40/98.143.md?p=b), you must retain the records in [paragraphs (b)(1) through (6)](#b-1..b-6) of this section.
  - (1) **Monthly glass production rate for each continuous glass melting furnace, by glass type (tons).**
  - (2) Monthly amount of each carbonate-based raw material charged to each continuous glass melting furnace (tons).
  - (3) Monthly amount (tons) of recycled scrap glass (cullet) charged to each continuous glass melting furnace, by glass type.
  - (4) Data on carbonate-based mineral mass fractions provided by the raw material supplier for all raw materials consumed annually and included in calculating process emissions in equation N-1 to [§ 98.143](/cfr/40/98.143.md), if applicable.
  - (5) Results of all tests, if applicable, used to verify the carbonate-based mineral mass fraction for each carbonate-based raw material charged to a continuous glass melting furnace, including the data specified in [paragraphs (b)(5)(i) through (v)](#b-5-i..b-5-v) of this section.
    - (i) **Date of test.**
    - (ii) **Method(s), and any variations of the methods, used in the analyses.**
    - (iii) **Mass fraction of each sample analyzed.**
    - (iv) **Relevant calibration data for the instrument(s) used in the analyses.**
    - (v) **Name and address of laboratory that conducted the tests.**
  - (6) The decimal fraction of calcination achieved for each carbonate-based raw material, if a value other than 1.0 is used to calculate process mass emissions of CO2.
- (c) **All other documentation used to support the reported GHG emissions.**
- (d) **Verification software records.** You must keep a record of the file generated by the verification software specified in [§ 98.5(b)](/cfr/40/98.5.md?p=b) for the applicable data specified in [paragraphs (d)(1) through (3)](#d-1..d-3) of this section. Retention of this file satisfies the recordkeeping requirement for the data in [paragraphs (d)(1) through (3)](#d-1..d-3) of this section.
  - (1) Annual average decimal mass fraction of carbonate-based mineral in each carbonate-based raw material for each continuous glass melting furnace (specify the default value, if used, or the value determined according to [§ 98.144](/cfr/40/98.144.md)) (percentage, expressed as a decimal) (Equation N-1 of [§ 98.143](/cfr/40/98.143.md)).
  - (2) Annual amount of each carbonate-based raw material charged to each continuous glass melting furnace (tons) (Equation N-1 of this subpart).
  - (3) Decimal fraction of calcination achieved for each carbonate-based raw material for each continuous glass melting furnace (specify the default value, if used, or the value determined according to [§ 98.144](/cfr/40/98.144.md)) (percentage, expressed as a decimal) (Equation N-1 of this subpart).

## Notes

### Amendments

[74 FR 56374, Oct. 30, 2009, as amended at 78 FR 71954, Nov. 29, 2013; 79 FR 63786, Oct. 24, 2014; 81 FR 89257, Dec. 9, 2016; 89 FR 31925, Apr. 25, 2024]

### Authority

Authority: 42 U.S.C. 7401-7671q.

### Source

Source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.

### Amendments

[74 FR 56374, Oct. 30, 2009, as amended at 78 FR 71954, Nov. 29, 2013; 79 FR 63786, Oct. 24, 2014; 81 FR 89257, Dec. 9, 2016; 89 FR 31925, Apr. 25, 2024]