Md. Code, Pub. Safety § 12-1001

(a) In this subtitle the following words have the meanings indicated. (b) “Addition” means an increase in: (1) building area; (2) aggregate floor area; (3) height; or (4) number of stories. (c) “Change of occupancy” means a change in the purpose or level of activity in a building or structure that involves a change in application of the local building code requirements. (d) “Construction permit application” means an application for a permit or other governmental approval for a rehabilitation project. (e) “Department” means the Maryland Department of Labor. (f) “Existing building” means a building or structure that was erected and occupied, or was issued a certificate of occupancy, at least 1 year before a construction permit application for the building or structure was made to a local jurisdiction, the Maryland–National Capital Park and Planning Commission, or the Washington Suburban Sanitary Commission. (g) “Local jurisdiction” means: (1) a county; or (2) a municipal corporation in the State. (h) “MBRC” means the Maryland Building Rehabilitation Code. (i) “Modification” means: (1) the reconfiguration of a space; (2) the addition or elimination of a door or window; (3) the reconfiguration or extension of a system; or (4) the installation of any additional equipment. (j) “Reconstruction” means: (1) the reconfiguration of a space that: (i) affects an exit or element of the egress access that is shared by more than a single occupant; or (ii) prevents occupancy of the work area because the existing means of egress and fire protection systems, or their equivalent, are not in place or continuously maintained; or (2) extensive modifications. (k) “Rehabilitation project” means construction work undertaken in an existing building that includes repair, renovation, modification, reconstruction, change of occupancy, or addition. (l) (1) “Renovation” means: (i) the change, strengthening, or addition of load bearing elements; or (ii) the refinishing, replacement, bracing, strengthening, upgrading, or extensive repair of existing materials, elements, components, equipment, or fixtures. (2) “Renovation” does not include: (i) reconfiguration of a space; or (ii) interior or exterior painting. (m) “Repair” means the patching, restoration, or minor replacement of materials, elements, components, equipment, or fixtures to maintain them in good or sound condition.