21 Guam Code Ann. § 61517
(a) the activity does not create a consternation with the residential use of the property and surrounding residential uses;
(b) the activity employs no employees other than family members residing in the dwelling or unit;
(c) there is no outside appearance of a family home occupation including, but not limited to, parking, signs or lights;
(d) the volume of deliveries and other vehicular traffic is not in excess of what is normally associated with residential use in the neighborhood;
(e) the activity uses no equipment or process that creates noise, vibration, glare, fumes, odors or electrical or electronic interference, including interference with radio or television reception, that would create a consternation to adjacent neighbors;
(f) the activity does not generate solid waste or sewage discharge, in volume or type, which is not normally associated with a residential use in the neighborhood; and
(g) the activity does not involve any illegal activity.