GSA Employee Parking GSA Employees receive special discounts on both monthly and daily parking from Colonial Parking. Monthly Parking GSA Employees Get 10% Off the first month of Monthly Parking at Participating Colonial Locations Monthly ParkingSelect a your preferred location form the map and select "Apply Now" to apply for your space. Daily Parking Don't need a monthly space? Receive a 10% discount on daily parking with our GSA Preferred Parker card. Daily ParkingGet 10% off with our special GSA Preferred Parker Card. Get yours now and put GSA for the company. About Colonial Parking Colonial Parking is locally owned and manages 300 plus parking locations in the Washington, DC area. GSA Employee FAQs Our Team, Dedicated to You Other Services Contact Us [ilogswidget id='8510' width='100%' height='500px']