Originally Posted by
FWAAA
I think the LGA perimeter is 1,500 miles, not 1,200 miles.

It's 1500 for LGA (plus Denver), and 1250 for DCA (plus specific exemption slots). The LGA rule does not apply on Saturdays.
The LGA rule is purely local (codified in 1984), and the DCA rule is by Act of Congress.