---
kind: "section"
citation: "40 C.F.R. § 1036.555"
title: "40"
number: "1036.555"
heading: "Test procedures to verify deterioration factors."
url: "https://uscodex.org/cfr/40/1036.555"
---

# §1036.555. Test procedures to verify deterioration factors.


[Sections 1036.240 through 1036.246](/cfr/40/1036.240..1036.246.md) describe certification procedures to determine, verify, and apply deterioration factors. This section describes the measurement procedures for verifying deterioration factors using PEMS with in-use vehicles.

- (a) **Use PEMS to collect 1 Hz data throughout a shift-day of driving.** Collect all the data elements needed to determine brake-specific emissions. Calculate emission results using moving average windows as described in [§ 1036.530](/cfr/40/1036.530.md).
- (b) Collect data as needed to perform the calculations specified in [paragraph (a)](#a) of this section and to submit the test report specified in [§ 1036.246(d)](/cfr/40/1036.246.md?p=d).

## Notes

### Authority

Authority: 42 U.S.C. 7401—7671q.

### Source

Source: 88 FR 4487, Jan. 24, 2023, unless otherwise noted.