DGA, I think you meant:
1 a maximum take off weight of
NOT more than
(I) 1320 pounds for an aircraft not intended to operate on the water.
Here's a portion of the Wikipedia article on LSA (easier to find than the FAA page!) that lists the basics.
https://en.wikipedia.org/wiki/Light-sport_aircraft
The FAA defines a light sport aircraft as an aircraft, other than a helicopter or Powered-lift, that since its original certification, has continued to meet the following:[6]
1.Max. Gross Takeoff Weight: 1,320 lbs (600 kg) or 1,430 lbs for seaplanes (650 kg)
2.Max. Stall Speed: 45 knots (83 km/h; 52 mph) CAS
3.Max. Speed in Level Flight (at sea level In the US Standard Atmosphere): 120 knots (220 km/h; 140 mph) CAS
4.Max. Seats: Two
5.Max. Engines / Motors: One (if powered)
6.Propeller: Fixed-pitch or ground adjustable
7.Cabin: Unpressurized
8.Fixed-pitch, semi-rigid, teetering, two-blade rotor system, if a gyroplane.
9.Landing Gear: Fixed (except for seaplanes and gliders)
So, Rowdy, what kind of aircraft was being considered for this project?
Best,
GG