Thank you for visiting the Rec-PAC web page. 2020 Registration information coming this April. 2020 Rec-PAC dates are June 29th to August 6th. If you have any questions, please email us at firstname.lastname@example.org The Fairfax County Park Authority Federal Employer Identification Number is : 54-0787-833. If you need a receipt, please call 703.222.4664 to request one.