Codes 21.03(6)(e)1 through 21.03(6)(e)6 state: Code 21.03(6)(d)1 and 21.03(6)(d)2 state: Code 21.03(6)(d)1 and 21.03(6)(d)2 state: Wisconsin Construction standards Chapter SPS 321 Codes 21.03(6)(e)1 through 21.03(6)(e)6 state: