167.52—In the approaches to Portland, ME: Eastern approach.

(a) A separation zone 1 mile wide is established and is centered upon the following geographical positions:
Latitude Longitude
43°30.18′ N 069°59.17′ W.
43°24.28′ N 069°32.70′ W.
Code of Federal Regulations 867
(b) A traffic lane 1/2 miles wide is established on each side of the separation zone.

Code of Federal Regulations

[USCG-2010-0718, 75 FR 77533, Dec. 13, 2010]