The purpose of this amendment is to modify several provisions of the newly established minimum Federal safety standards. These changes will avoid several problems that would have caused unnecessary burdens for the pipeline industry. The minimum Federal safety standards were established on August 12, 1970, as Part 192 of Title 49 of the Code of Federal Regulations (35 P.R. 13247, Aug. 19, 1970). These amendments are also being made effective November 12, 1970, in order to coincide with the effective date of Part 192. One major problem area Is the application of the new standards to existing stocks of pipe and other materials, particularly with respect to Subpart B and Appendix B. The editions of the pipe specifications listed in Appendix B were the most recently Issued editions. This required that stockpiled pipe made under earlier editions of these specifications be qualified or used in some other way. To avoid this situation, two amendments are being made. The earlier editions of these specifications that were listed in the 1968 edition of the B31.8 Code are being included in the list in Appendix B. Further, § 192.55 is being amended to permit the use of new steel pipe for replacement in an existing pipeline if it was manufactured in accordance with the same specification as the pipe used in the pipeline