Address: 44075 Pipeline Plaza, STE 115, Ashburn, VA 20147, USA • Phone: 7038587277 • Testing and Proctoring Center is located in Ashburn and is one of the largest educational testing and proctoring centers based in Loudoun County, VA. TAPC is currently accredited to offer and deliver computerized exams available by 2 of the biggest exam sponsors Pearson Vue and PSIonline along with other examination providers Kryterion, Scantron, CLEP, DSST (Prometric), MAT, and WGU. TAPC features modern, secure facilities with all new computer and testing equipment and secured lockers. TAPC has skillfully educated and courteous staff. There is plenty of free parking available for test takers.