---
kind: "section"
citation: "40 C.F.R. § 61.270"
title: "40"
number: "61.270"
heading: "Applicability and designation of sources."
url: "https://uscodex.org/cfr/40/61.270"
---

# §61.270. Applicability and designation of sources.

- (a) The source to which this subpart applies is each storage vessel that is storing benzene having a specific gravity within the range of specific gravities specified in ASTM D836-84 for Industrial Grade Benzene, ASTM D835-85 for Refined Benzene-485, ASTM D2359-85a or 93 for Refined Benzene-535, and ASTM D4734-87 or 96 for Refined Benzene-545. These specifications are incorporated by reference as specified in [§ 61.18](/cfr/40/61.18.md). See [§ 61.18](/cfr/40/61.18.md) for acceptable versions of these methods.
- (b) Except for [paragraph (b)](#b) in [§ 61.276](/cfr/40/61.276.md), storage vessels with a design storage capacity less than 38 cubic meters (10,000 gallons) are exempt from the provisions of this subpart.
- (c) **This subpart does not apply to storage vessels used for storing benzene at coke by-product facilities.**
- (d) This subpart does not apply to vessels permanently attached to motor vehicles such as trucks, rail cars, barges, or ships.
- (e) This subpart does not apply to pressure vessels designed to operate in excess of 204.9 kPa (29.72 psia) and without emissions to the atmosphere.
- (f) A designated source subject to the provisions of this subpart that is also subject to applicable provisions of [40 CFR part 60](/cfr/40/part60.md) subparts [K](/cfr/40/subpartK.md), [Ka](/cfr/40/subpartKa.md), and Kb shall be required to comply only with the subpart that contains the most stringent requirements for that source.
- (g) **Alternative means of compliance—**
  - (1) **Option to comply with part 65.** Owners or operators may choose to comply with [40 CFR part 65](/cfr/40/part65.md), [subpart C](/cfr/40/subpartC.md), to satisfy the requirements of [§§ 61.271 through 61.277](/cfr/40/61.271..61.277.md), except for §§ [61.271(d)(2)](/cfr/40/61.271.md?p=d-2) and [61.274(a)](/cfr/40/61.274.md?p=a) for storage vessels that are subject to this subpart. Other provisions applying to owners or operators who choose to comply with [40 CFR part 65](/cfr/40/part65.md) are provided in [40 CFR 65.1](/cfr/40/65.1.md).
  - (2) **Part 61, subpart A.** Owners or operators who choose to comply with [40 CFR part 65](/cfr/40/part65.md), [subpart C](/cfr/40/subpartC.md), must also comply with §§ [61.01](/cfr/40/61.01.md), [61.02](/cfr/40/61.02.md), [61.05 through 61.08](/cfr/40/61.05..61.08.md), [61.10(b) through (d)](/cfr/40/61.10.md?p=b..d), [61.11](/cfr/40/61.11.md), and [61.15](/cfr/40/61.15.md) for those storage vessels. All sections and paragraphs of [subpart A](/cfr/40/subpartA.md) of this part that are not mentioned in this [paragraph (g)(2)](#g-2) do not apply for storage vessels complying with [40 CFR part 65](/cfr/40/part65.md), [subpart C](/cfr/40/subpartC.md), except that provisions required to be met prior to implementing [40 CFR part 65](/cfr/40/part65.md) still apply. Owners and operators who choose to comply with [40 CFR part 65](/cfr/40/part65.md), [subpart C](/cfr/40/subpartC.md), must comply with [40 CFR part 65](/cfr/40/part65.md), subpart A.

## Notes

### Amendments

[54 FR 38077, Sept. 14, 1989, as amended at 65 FR 62159, Oct. 17, 2000; 65 FR 78283, Dec. 14, 2000]

### Source

Source: 54 FR 38077, Sept. 14, 1989, unless otherwise noted.

### Authority

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

### Source

Source: 38 FR 8826, Apr. 6, 1973, unless otherwise noted.

### Amendments

[54 FR 38077, Sept. 14, 1989, as amended at 65 FR 62159, Oct. 17, 2000; 65 FR 78283, Dec. 14, 2000]