Code of Federal Regulations > Title 40 > Chapter I > Part 86 > Appendix Appendix X - Appendix X to Part 86—Sampling Plans for Selective Enforcement Auditing of Heavy-Duty Engines and Light-Duty Trucks

Regulations last checked for updates: May 03, 2024

Title 40 - Protection of Environment last revised: Jun 26, 2024

Appendix Appendix X - Appendix X to Part 86—Sampling Plans for Selective Enforcement Auditing of Heavy-Duty Engines and Light-Duty Trucks

Table 1—Sampling Plan Code Letter

Table 2—Sampling Plan for Code Letter “A”

[Sample inspection criteria]

Stage	Pass No.	Fail No.	Stage	Pass No.	Fail No.
1	( ¹)	( ²)	16	6	11
2	( ¹)	( ²)	17	7	12
3	( ¹)	( ²)	18	7	12
4	0	( ²)	19	8	13
5	0	( ²)	20	8	13
6	1	6	21	9	14
7	1	7	22	10	14
8	2	7	23	10	15
9	2	8	24	11	15
10	3	8	25	11	16
11	3	8	26	12	16
12	4	9	27	12	17
13	5	10	28	13	17
14	5	10	29	14	17
15	6	11	30	16	17

¹ Test sample passing not permitted at this stage.

² Test sample failure not permitted at this stage.

Table 3—Sampling Plan for Code Letter “B”

[Sample Inspection Criteria]

¹ Test sample passing not permitted at this stage.

² Test sample failure not permitted at this stage.

Table 4—Sampling Plan for Code Letter “C”

[Sample Inspection Criteria]

¹ Test sample passing not permitted at this stage.

² Test sample failure not permitted at this stage.

Table 5—Sampling Plan for Code Letter “D”

[Sample Inspection Criteria]

¹ Test sample passing not permitted at this stage.

² Test sample failure not permitted at this stage.

[48 FR 1414, Jan. 12, 1983, as amended at 48 FR 52209, Nov. 16, 1983]

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