Project Labor Agreement Basics: What is a PLA? 31 April 24, 2009 Featured A government-mandated project labor agreement (PLA) is an anti-competitive and costly scheme designed by Big Labor and sympathetic public officials to funnel construction contracts to unionized contractors and union members while cutting competition from qualified merit shop contractors and their skilled merit shop employees.
Though not requiring regulatory action, an outer area is the procedural companion to Class C airspace Normally this area is 20 NM from the primary Class C airspace airport. The normal radius of an outer area is 20 NM from the primary Class C airspace airport.
1 In NDA, however, the floor of Class A high-level airspace varies between FL230, in what is referred to as the Northern Control Area, and FL270, in what is referred to as the Arctic Control Areas.  Only IFR flight is permitted in Class A airspace, and all aircraft are therefore subject to ATC clearances and instructions.