Amendments to the Test Procedures for Heavy-Duty Engines, and Light-Duty Vehicles and Trucks and Amendments to the Emission Standard Provisions for Gaseous Fueled Vehicles and Engines
air-emissions · Rule · Published 1998-05-04 · 63 FR 24446
Document
Document number
98-10718
Federal Register citation
63 FR 24446
CFR reference
40 CFR 86
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
1998-05-04
EPA docket
FRL-5999-7
Abstract
On September 5, 1997, EPA promulgated a direct final rulemaking that amended several sections of the heavy-duty engine test procedure regulations. These changes were needed in order to accommodate the use of new testing equipment, to provide greater flexibility in the type of testing equipment used and to ensure uniform calibration and use of the testing equipment. EPA stated that it would withdraw any provisions that received adverse or critical comments. EPA also published a notice of proposed rulemaking at that time proposing the same amendments. Due to adverse comments that were received regarding three provisions of the final rule, EPA is removing those three provisions in this action. The Agency intends to issue in the near future a final rule addressing these provisions.