For Residential Installations:
NEC 210.52 (A)(1) "Spacing, Receptacles shall be installed such that no point measured horizontally along the floor line in any wall space is more than six feet from a receptacle outlet".
NEC 210.52 (G) "Basements and Garages,
(1) At least one receptacle outlet, in addition to those for specific equipment, shall be installed in each basement, in each attached garage, and in each detached garage with electric power.
(2) Where a portion of the basement is finished into one or more habitable rooms, each separate unfinished portion shall have a receptical outlet installed in accordance with this section.