---
kind: "section"
citation: "40 C.F.R. § 63.7911"
title: "40"
number: "63.7911"
heading: "How do I demonstrate initial compliance with the emissions limitations and work practice standards for separators?"
url: "https://uscodex.org/cfr/40/63.7911"
---

# §63.7911. How do I demonstrate initial compliance with the emissions limitations and work practice standards for separators?

- (a) You must demonstrate initial compliance with the emissions limitations and work practice standards in [§ 63.7910](/cfr/40/63.7910.md) that apply to your affected separators by meeting the requirements in [paragraphs (b) through (d)](#b..d) of this section, as applicable to your separators.
- (b) You must demonstrate initial compliance of each separator using a floating roof according to [§ 63.7910(b)(1)](/cfr/40/63.7910.md?p=b-1) if you have submitted as part of your notification of compliance status, specified in [§ 63.7950](/cfr/40/63.7950.md), a signed statement that you have met the requirements in [paragraphs (b)(1) through (4)](#b-1..b-4) of this section.
  - (1) You have installed a floating roof and closure devices that meet the requirements in [§ 63.1043(b)](/cfr/40/63.1043.md?p=b), and you have records documenting the design and installation.
  - (2) You will operate the floating roof and closure devices according to the requirements in [§ 63.1043(c)](/cfr/40/63.1043.md?p=c), with the exceptions specified in [§ 63.7910(b)(1)](/cfr/40/63.7910.md?p=b-1).
  - (3) You have performed an initial seal gap measurement inspection using the procedures in [§ 63.1046(b)](/cfr/40/63.1046.md?p=b), and you have records documenting the measurement results.
  - (4) You have performed an initial visual inspection of the floating roof and closure devices for defects according to the requirements in [§ 63.1047(b)(2)](/cfr/40/63.1047.md?p=b-2), and you have records documenting the inspection results.
  - (5) For any portions of the separator using a fixed roof vented to a control device according to [§ 63.7910(b)(1)](/cfr/40/63.7910.md?p=b-1), you have met the requirements in [paragraphs (c)(1) through (4)](#c-1..c-4) of this section.
- (c) You must demonstrate initial compliance of each separator using a fixed roof vented to a control device according to [§ 63.7910(b)(2)](/cfr/40/63.7910.md?p=b-2) if you have submitted as part of your notification of compliance status, specified in [§ 63.7950](/cfr/40/63.7950.md), a signed statement that you have met the requirements in [paragraphs (c)(1) through (4)](#c-1..c-4) of this section.
  - (1) You have installed a fixed roof and closure devices that meet the requirements in [§ 63.1042(b)](/cfr/40/63.1042.md?p=b), and you have records documenting the design and installation.
  - (2) You will operate the fixed roof and its closure devices according to the requirements in [§ 63.1042(c)](/cfr/40/63.1042.md?p=c). [§ 63.1042(c)(3)](/cfr/40/63.1042.md?p=c-3) does not apply for the purposes of this subpart if your initial date is after September 3, 2019; [§ 63.1042(c)(3)](/cfr/40/63.1042.md?p=c-3) does not apply for the purposes of this subpart for any source after January 6, 2021.
  - (3) You have performed an initial visual inspection of the fixed roof and closure devices for defects according to the requirements in [§ 63.1047(a)](/cfr/40/63.1047.md?p=a).
  - (4) You have met each applicable requirement for demonstrating initial compliance with the emission limitations and work practice standards for a closed vent system and control device in [§ 63.7926](/cfr/40/63.7926.md).
- (d) You must demonstrate initial compliance of each pressurized separator that operates as a closed system according to [§ 63.7910(b)(3)](/cfr/40/63.7910.md?p=b-3) if you have submitted as part of your notification of compliance status, specified in [§ 63.7950](/cfr/40/63.7950.md), a signed statement that you have met the requirements in paragraphs [(d)(1)](#d-1) and [(2)](#d-2) of this section.
  - (1) You have installed a pressurized separator that operates as a closed system according to the requirements in § [63.1045(b)(1)](/cfr/40/63.1045.md?p=b-1) and [(b)(2)](/cfr/40/63.1045.md?p=b-2), and you have records of the design and installation.
  - (2) You will operate the pressurized separator as a closed system according to the requirements in [§ 63.1045(b)(3)](/cfr/40/63.1045.md?p=b-3), with the exceptions specified in [§ 63.7910(b)(3)](/cfr/40/63.7910.md?p=b-3).

## Notes

### Amendments

[68 FR 58190, Oct. 8, 2003, as amended at 85 FR 41705, July 10, 2020]

### Source

Source: 68 FR 58190, Oct. 8, 2003, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Source

Source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.

### Amendments

[68 FR 58190, Oct. 8, 2003, as amended at 85 FR 41705, July 10, 2020]