Ray (webmaster) on 9/20/2014 11:36:15 AM:
Overnight C&O parkers, in case you hadn't seen this from the National Parks Service:
Before parking a vehicle overnight in any Canal Parking area, visitors must register their vehicle through the new online registration system. Print your reciept and place on your dashboard. If unable to print, please visit the nearest visitor center.
https://docs.google.com/forms/d/13MDCIFnc_lnp3CXPTzDiikf3kAD2wEMtgBVoaC7-yaQ/viewform