Attach a cover letter with specific direction of what pleading to serve, who to serve, and where to serve. You can see an example of a cover letter here.Use the links below to download and fill out the affidavit form to be included with the application. Parents or legal guardians will need to provide the following documents: Proof of Residency in Fairfax County. Join the Park Authority and our nationally recognized team of professionals! Instruction on how to submit each application are provided on the cover letter. Residential ZPs must include the following: Residential Land-disturbing. Photographs of the original documents can be seen in the slideshow at the bottom of the page. A scenic park along the Potomac River, midway between DC and Mount Vernon. Step 2: Pay online -or- complete credit card authorization form.