Line A is defined in the US Federal Code of Regulations Part 47,[1] and runs from Aberdeen, Washington to Searsport, Maine, roughly parallel to the Canada–US border in several segments.
ITU Radio Regulations, Volume 1(PDF) (2012, Volume 1 ed.). International Telecommunication Union. 2012. p. 38. Archived from the original(PDF) on 28 July 2017. Retrieved 21 February 2016.
ITU Radio Regulations, Volume 1(PDF) (2012, Volume 1 ed.). International Telecommunication Union. 2012. pp. 96–98. Archived from the original(PDF) on 28 July 2017. Retrieved 21 February 2016.
ITU Radio Regulations, Volume 1(PDF) (2012, Volume 1 ed.). International Telecommunication Union. 2012. p. 38. Archived from the original(PDF) on 28 July 2017. Retrieved 21 February 2016.
ITU Radio Regulations, Volume 1(PDF) (2012, Volume 1 ed.). International Telecommunication Union. 2012. pp. 96–98. Archived from the original(PDF) on 28 July 2017. Retrieved 21 February 2016.