§ 177.202. Emission test equipment.
(a) Performance features of emission test equipment. Computerized test systems are required for performing any emission measurement on subject vehicles. The test equipment shall be certified to meet as applicable EPA requirements, including those contained in 40 CFR Part 51, Subpart S, Appendix D (relating to steady-state short test equipment), which is adopted by reference, or the performance standards of California BAR 97 as they apply to the PA97 analyzer and Appendix A (relating to acceleration simulation mode: Pennsylvania procedures, standards, equipment specifications and quality control requirements). Newly acquired systems shall be subjected to acceptance test procedures to ensure compliance with program specifications.
(1) Emission test equipment shall be capable of testing subject vehicles and shall be updated as needed to accommodate new technology vehicles as well as changes to the program.
(2) At a minimum, emission test equipment shall be:
(i) Automated to the highest degree commercially available to minimize the potential for intentional fraud or human error, or both.
(ii) Secure from tampering or abuse, or both.
(iii) Based upon written specifications.
(iv) Capable of simultaneously sampling dual exhaust vehicles.
(b) Functional characteristics of computerized test systems. The test system is composed of emission measurement devices and other motor vehicle test equipment controlled by a computer.
(1) The test system shall automatically:
(i) Make pass/fail decisions for all measurements.
(ii) Record test data to an electronic medium.
(iii) Conduct regular self-testing of recording accuracy.
(iv) Perform electrical calibration and system integrity checks before each test, as applicable.
(v) Initiate system lockouts for:
(A) Tampering with security aspects of the test system.
(B) Failing to conduct or pass periodic calibration or leak checks.
(C) Failing to conduct or pass the constant volume sampler flow rate check, if applicable.
(D) Failing to conduct or pass one or more of the dynamometer checks, including coast-down, roll speed and roll distance, power absorption capability and inertia weight selection checks, if applicable.
(E) Failing to conduct or pass the pressure monitoring device check, if applicable.
(F) Failing to conduct or pass the purge flow metering system check, if applicable.
(G) Failing to have installed in the test analyzer a full data recording medium or one that passes a cyclical redundancy check.
(2) Test systems shall include a real time data link to the Department computer or other computers as specified by the Department.
(3) The test system shall insure accurate data collection by limiting, cross-checking or confirming manual data entry.
(c) Test equipment for acceleration simulation mode (ASM) emission testing. Test equipment for ASM emission testing shall be as specified in Appendix A and quality control regulations of this chapter.
(d) One-speed idle test equipment. One speed idle test equipment requirements for model years 1975—1980 shall be as specified in 40 CFR Part 51, Subpart S, Appendix (D)(I) which is adopted by reference.
(e) Two-speed idle test equipment. Two-speed idle test equipment for model years 1981 and newer shall be as specified in 40 CFR Part 51, Subpart S, Appendix D which is adopted by reference or Appendix A, as applicable.
Source The provisions of this § 177.202 amended November 21, 2003, effective November 22, 2003, 33 Pa.B. 5706. Immediately preceding text appears at serial pages (235266) to (235268).
Cross References This section cited in 67 Pa. Code § 177.51 (relating to program requirements); and 67 Pa. Code § 177.408 (relating to certified emission inspectors).
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