(1) Up to and including March 31, 1990, Montana's minimum hourly wage rate shall be $3.35 an hour.

(2) From April 1, 1990 through March 31, 1991, Montana's minimum hourly wage rate shall be $3.80 an hour.

(3) From April 1, 1991 through April 25,1991, Montana's minimum hourly wage rate shall be $4.00 an hour.

(4) From April 26, 1991 through September 30, 1996, Montana's minimum hourly wage rate for a business whose annual gross sales is greater than $110,000 shall be $4.25 an hour, not including tips.

(5) Effective April 26, 1991, and thereafter until further notice, Montana's minimum hourly wage rate for a business whose annual gross sales is $110,000 or less shall be $4.00 an hour, not including tips.

(6) Effective April 26, 1991, no training or new hire wage will be recognized in Montana.

(7) For work performed from October 1, 1996 through August 31, 1997, Montana's minimum hourly wage rate for a business whose annual gross sales is more than $110,000 is $4.75 an hour, not including tips.

(8) For work performed on or after September 1, 1997, Montana's minimum hourly wage rate for a business whose annual gross sales is more than $110,000 is $5.15 an hour, not including tips.