---
kind: "section"
citation: "40 C.F.R. § 63.486"
title: "40"
number: "63.486"
heading: "Batch front-end process vent provisions."
url: "https://uscodex.org/cfr/40/63.486"
---

# §63.486. Batch front-end process vent provisions.

- (a) **Batch front-end process vents.** Except as specified in [paragraph (b)](#b) of this section, owners and operators of new and existing affected sources with batch front-end process vents shall comply with the requirements in [§§ 63.487 through 63.492](/cfr/40/63.487..63.492.md). The batch front-end process vent group status shall be determined in accordance with [§ 63.488](/cfr/40/63.488.md). Owners or operators of affected sources with batch front-end process vents classified as Group 1 shall comply with the reference control technology requirements for Group 1 batch front-end process vents in [§ 63.487](/cfr/40/63.487.md), the monitoring requirements in [§ 63.489](/cfr/40/63.489.md), the performance test methods and procedures to determine compliance in [§ 63.490](/cfr/40/63.490.md), the recordkeeping requirements in [§ 63.491](/cfr/40/63.491.md), and the reporting requirements in [§ 63.492](/cfr/40/63.492.md). Owners and operators of all Group 2 batch front-end process vents shall comply with the applicable reference control technology requirements in [§ 63.487](/cfr/40/63.487.md), the applicable recordkeeping requirements in [§ 63.491](/cfr/40/63.491.md), and the applicable reporting requirements in [§ 63.492](/cfr/40/63.492.md).
- (b) **Aggregate batch vent streams.** Aggregate batch vent streams, as defined in [§ 63.482](/cfr/40/63.482.md), are subject to the control requirements specified in [§ 63.487(b)](/cfr/40/63.487.md?p=b), as well as the monitoring, testing, recordkeeping, and reporting requirements specified in [§§ 63.489 through 63.492](/cfr/40/63.489..63.492.md) for aggregate batch vent streams.

## Notes

### Amendments

[65 FR 38052, June 19, 2000]

### Source

Source: 62 FR 46925, Sept. 5, 1996, unless otherwise noted.

### Authority

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

### Source

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

### Amendments

[65 FR 38052, June 19, 2000]