The purpose of this amendment is to modify slightly several provisions of this new part. These changes will clarify certain provisions and ease the burden of compliance in others without any effect on safety. On September 29, 1969, the Hazardous Materials Regulations Board issued a new Part 195 which established safety regulations for the design, construction, operation, and maintenance of liquid pipeline;. On March 2, 1970, the American Petroleum Institute, on behalf of the liquid petroleum pipeline industry, submitted a petition for reconsideration of certain parts of these new regulations. The petition and the Board's reply have been placed in Docket HM-6 and are available to the public at the Office of Hazardous Materials. In response to parts of this petition, several changes are being made to Part 195. Section 195.1(b) (4). As previously Issued, this subparagraph was not broad enough to accomplish its intended purpose of excluding gathering pipelines in rural areas. It has been reworded to exclude gathering lines of carriers in rural areas, up to the point of connection with the carrier's trunk line. Sections 195.2 and 195.6(a). The petitioner requested that a definition of petroleum similar to that contained in Part 180'be included in Part 195 to avoid uncertainty as to whether or not certain liquids- would be included in the phrase "petroleum and petroleum products". The only provision of the regulations where this uncertainty would be of any significance is § 195.6. As issued, this section might appear to require notification for the shipment of natural gasoline or liquefied petroleum gases, which was not intended. To avoid this problem, § 195.6 is being amended to specifically exclude these two items from the notification requirement.