The purpose of this amendment is to modify the restrictions in Part 195 on the testing of pipelines using the commodity to be transported as the test medium. The amendment deletes the requirement for a 1,000-foot clear zone and provides several other conditions in lieu thereof. The regulations on testing of pipelines transporting hazardous liquids were issued on November 2, 1970 (35 P.R. 17183, November 7, 1970) and became effective on January 8, 1971. The American Petroleum Institute has petitioned the Board to delete § 195.306(b) (2) which requires that no persons, other than those con- ducting the test, be within 1,000 feet of the pipeline test section when testing with liquid petroleum. If this clear zone requirement is not met, water must be used as the test medium.