---
kind: "section"
citation: "40 C.F.R. § 1051.320"
title: "40"
number: "1051.320"
heading: "What happens if one of my production-line vehicles or engines fails to meet emission standards?"
url: "https://uscodex.org/cfr/40/1051.320"
---

# §1051.320. What happens if one of my production-line vehicles or engines fails to meet emission standards?

- (a) If you have a production-line vehicle or engine with final deteriorated test results exceeding one or more emission standards (see [§ 1051.315(a)](/cfr/40/1051.315.md?p=a)), the certificate of conformity is automatically suspended for that failing vehicle or engine. You must take the following actions before your certificate of conformity can cover that vehicle or engine:
  - (1) **Correct the problem and retest the vehicle or engine to show it complies with all emission standards.**
  - (2) Include the test results and describe the remedy for each engine in the written report required under [§ 1051.345](/cfr/40/1051.345.md).
- (b) You may request to amend the application for certification to raise the FEL of the entire engine family at this point (see [§ 1051.225](/cfr/40/1051.225.md)).

## Notes

### Amendments

[67 FR 68347, Nov. 8, 2002, as amended at 73 FR 59252, Oct. 8, 2008]

### Authority

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

### Source

Source: 67 FR 68347, Nov. 8, 2002, unless otherwise noted.

### Amendments

[67 FR 68347, Nov. 8, 2002, as amended at 73 FR 59252, Oct. 8, 2008]