Contains registers 277 through 288

• No. 288, eff. 1/1/1980

• No. 287, eff. 12/1/1979

• No. 286, eff. 11/1/1979

• No. 285, eff. 10/1/1979

• No. 284, eff. 9/1/1979

• No. 283, eff. 8/1/1979

• No. 282, eff. 7/1/1979

• No. 281, eff. 6/1/1979

• No. 280, eff. 5/1/1979

• No. 279, eff. 4/1/1979

• No. 278, eff. 3/1/1979

• No. 277, eff. 2/1/1979