30. Every service operated by the Government, by one of its departments or bodies or by any other public body, which would constitute a public service if operated by an owner shall be subject to the jurisdiction of the Board to the extent that the rights of third parties are affected.
R. S. 1964, c. 229, s. 29; 1972, c. 56, s. 8; 1977, c. 5, s. 14.