Hi WELDICCAWSCWI,
I'm not too familiar with 49 CFR 192 ‘Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards’ but it would appear that the answer to your question could be found in this link:
http://www.law.cornell.edu/cfr/text/49/192In particular, subpart I.
It is a pity you didn't have a more lenient response given your countries poor record with safety on these types of transmission lines. Who knows who’s living next door to one of these lines?
Hope this helps.