CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 89—CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD COMPRESSION-IGNITION ENGINES > SUBPART D—Emission Test Equipment Provisions (§89.301 to §89.331) > 89.305—Equipment measurement accuracy/calibration frequency.

89.305—Equipment measurement accuracy/calibration frequency.

The accuracy of measurements must be such that the maximum tolerances shown in Table 3 in appendix A of this subpart are not exceeded. Calibrate all equipment and analyzers according to the frequencies shown in Table 3 in appendix A of this subpart.

Code of Federal Regulations

[59 FR 31335, June 17, 1994. Redesignated at 63 FR 56995, Oct. 23, 1998]