The following standards are advisory, rather than mandatory:

1. (1) Sources of illumination, both natural and artificial, should be provided with light diffusion means, or should be of a type and design which limits excessive glare.

2. (2) The following minimum lighting, measured in foot-candles, should be maintained during all periods of use:

   1. (a) hallways, corridors, storerooms, locker rooms, shower rooms, auditoriums (not for study) -- 10;
   2. (b) cafeterias, reception rooms, swimming rooms, gymnasiums, toilet rooms, laundry rooms -- 20;
   3. (c) classrooms, study halls, lecture rooms, art rooms, libraries -- 50;
3. (3) In shops, laboratories, drafting rooms, typing rooms, home economics rooms, or other areas where pupils use specific machines or equipment, a minimum of 100 footcandles should be maintained on such machinery or equipment while in use.

Authorizing statute(s): 50-1-206, MCA

Implementing statute(s): 50-1-203, 50-1-206, MCA

History: NEW, 1986 MAR p. 546, Eff. 4/11/86; TRANS, from DHES, 2001 MAR p. 2425.