Regulation at this level of detail may, however, belong only in zoning bylaws, and not in provincial
minimum standards. General regulation of intensity and shielding will lead to significant mitigation
of light trespass.
All night lighting— One of the most wasteful lighting practices is all night lighting that is not
required for security or business purposes. Bylaws may provide some detail, but the general rule
contained in the Indiana Framework may be a satisfactory general rule:
ALL-NIGHT LIGHTING
Lighting at places of business or public venues, except for security, shall be turned
off no later than one hour after closing. Such lights should be confined to that needed
for basic security. The lights of vacant parking lots shall not remain lighted except
for illuminating entryways by the fixtures closest to building entrances..