The residential inspection checklist for (final) attic includes:
Attic scuttle opening: min. 22” x 30” (minimum 30" unobstructed headroom) and large enough to allow removal of the largest appliance , section R807, I.R.C. ***Please note: If the attic scuttle is located in the garage, the scuttle opening frame and lid cover must be a minimum ½ inch GWB (5/8 inch 'type x' GWB if in the garage, section R302.6, City amended).
Clear and unobstructed access passageway (minimum 22" wide, maximum 20 feet in length with minimum headroom of 30") to attic installed appliances, section M1305.1.3, I.R.C.
Light, receptacle outlet, and light switch for attic installed appliances, section M1305.1.3.1,I.R.C.
Disconnecting means for attic installed appliances, section E4101.5, I.R.C.
Gas line installed with shutoff valve (S.O.V.) within six (6) feet of attic installed appliances, section G2420.5.1, I.R.C.