Coastal and Inland Waterways Navigation Safety Act of 1984

Coastal and Inland Waterways Navigation Safety Act of 1984 - Postpones the termination date of the Towing Safety Advisory Committee from October 6, 1985, to September 30, 1990.

Amends the Inland Navigational Rules Act of 1980 to exempt power-driven towing vessels operating below the Huey P. Long Bridge on the Mississippi River (Louisiana) from the towing light requirements.

Removes the authority for members of the Rules of the Road Advisory Council who are not Federal officials or employees to be compensated while engaged in the business of the Council. Postpones the termination date of such Council from December 24, 1985, to September 30, 1990.