Regulations last checked for updates: May 03, 2024

Title 40 - Protection of Environment last revised: Jun 26, 2024
Appendix Appendix XII - Appendix XII to Part 86—Tables for Production Compliance Auditing of Heavy-Duty Engines and Heavy-Duty Vehicles, Including Light-Duty Trucks

Table 1—Compliance Level Determination Using the Primary PCA Sampling Plan

Compliance level 2
PCA test sample size. 1
2415
2515
2616
2717
2817
2918
3018
3119
3220
3320
3421
3521
3622
3723
3823
3924
4024
4125
4226
4326
4427
4527
4628
4729
4829
4930
5030
5131
5232
5332
5433
5533
5634
5735
5835
5936
6036

1 Including the number of SEA tests if applicable.

2 Is the test result of the sequence number: (The lowest test result is sequence No. 1).

Table 2—Values of K for the Reduced Fixed PCA Sampling Plan

Value of K
Sample size:
31.602
41.114
50.895
60.764
70.674
80.608
90.555
100.513
110.478
120.448
130.422
140.399
150.379
160.360
170.343
180.328
190.314
200.301
210.289
220.277
230.266

Table 3—Values of K for the Reduced Sequential PCA Sampling Plan

Value of K
Sample size:
41.671
80.912
120.672
160.540
200.451
[50 FR 35401, Aug. 30, 1985]