AFCI (Arc-fault Circuit Interrupter) All 15A and 20A, 120V branch circuits supplying outlets in the family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, rec rooms, closets, hallways, and similar areas require AFCI protection.

To learn more about AFCI visit: AFCI Safety

GFI or GFCI(Ground-fault Circuit Interrupter) It is required in wet areas where the shock hazard is the greatest. According to NEC codes in dwelling units GFCI shall be provided in bathrooms, garages, outdoors, grawl spaces, unfinished basements, kitchen's countertop surfaces, boathouses, and anywhere within 6 feet of the outside edge of the sink. They quickly shut off power if they detect an imbalance in the electrical current. It should be tested regularly.

15 and 20 ampere, 125 and 250 volt receptacles installed in a wet location shall have an enclosure that is weatherproof whether or not the attachment plug cap is inserted.

Outlet National Electrical Code (NEC) requirements for residential outlet installations are as:

Spacing Outlets must be installed so that no point along a wall is more than 6 feet from an outlet. Hallways longer than 10 feet require at least one outlet.
Kitchen Outlets Countertop outlets must be spaced no more than 4 feet apart. Any countertop 12 inches or wider requires an outlet. Must use GFCI protection for all kitchen countertop outlets.
Bathroom Outlets At least one GFCI-protected outlet must be installed within 3 feet of the sink. Bathroom outlets must be on a dedicated 20-amp circuit.
Living Room & Bedroom Outlets General wall outlets must follow the 6-foot rule. No specific GFCI/AFCI requirements, but AFCI protection is generally required for new installations.
Outdoor & Garage Outlets All outdoor outlets must be GFCI protected. Garages require at least one 20-amp circuit with a GFCI outlet.
Basement & Utility Rooms Unfinished basements must have at least one outlet per space. Any outlets in basements, crawl spaces, or near wet locations require GFCI protection.
Specialized Areas Laundry areas require a 20-amp circuit for washers and dryers. Outlets must not be installed face-up on countertops unless part of a listed assembly.