(a) Commissioner shall mean the Commissioner of Environmental Conservation.

(b) Department shall mean the Department of Environmental Conservation.

(c) Emergency shall mean a condition or activity which presents an imminent danger to the health, safety or welfare of the people of the State or results in or is likely to result in irreversible or irreparable damage to natural resources.

(d) Flood control works shall mean any completed flood control project or a portion thereof, formally turned over to the state, including but not limited to levees, floodwalls, channel improvements, ponding areas, pumping stations, drainage structures, reservoirs, dams, quarries, gravel pits, borrow pits and spoil banks.

(e) Flood control land shall mean any land or interest in land acquired for flood control purposes.

(f) Governmental body shall mean a local government, a public corporation or authority, or any other agency or instrumentality of the State or any local government.

(g) Lawn maintenance equipment shall mean devices or tools which are used exclusively for maintenance of lawns but not including any device or tool which during normal use could substantially damage the sod.

(h) Regulated activity shall mean any change in or addition to land or any structure thereon, including but not limited to, any activity which results in destruction of trees, shrubs and other vegetation, changing any feature of the existing landscape, addition of gutters, sidewalks, driveways, parking lots or spaces, outdoor lighting, installation of utilities, or operation of a motor vehicle or snowmobile.

(i) Motor vehicle shall mean a vehicle operated or driven by any power other than muscular power except:

(j) Snowmobile shall mean any self-propelled vehicle designed for travel on snow or ice, steered by skis or runners and supported in whole or in part by one or more skis, belts or cleats.

(k) Permittee shall mean a holder of a permit issued pursuant to this Part.

(l) Person shall mean any individual, public or private corporation, political subdivision, government agency, department or bureau of the State, municipality, industry, copartnership, association, firm, trust, estate or any other legal entity whatsoever.

(m) Tenant shall mean any person who occupies the land, or any improvements thereon, of another pursuant to agreement with the owner of such land.