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DE PARTMEN T OF CONSU MER AND INDUS TRY SER VIC ES DIRECTO R’S OFF ICE
CONS TRU CTIO N CODE
Filed with th e Secretar y of Stat e on April 18, 2001 .
These ru les tak e effect J uly 31, 2001
(By auth ority conferr ed on th e director of th e dep artm ent of con sum er an d industr y services by section 4 of 1972 PA 230 , an d Execut ive Reorgan izat ion Order No. 1996 -2, MCL 125 .1504 an d 445 .2001 )
R 408 .30701 , R 408 .30711 , R 408 .30714 , R 408 .30715 , R 408 .30716 , R 408 .30717 , R
408 .30718 , R 408 .30719 , R 408 .30720 , R 408 .30728 , R 408 .30735 , R 408 .30740 a, R
408 .30741 c, R 408 .30744e , R 408 .30749 , R 408 .30754b , R 408 .30757 , R 408 .30758 , R
408 .30785 , R 408 .30786 , an d R 408 .30791 of th e Michigan Administrat ive Code ar e am ended, an d R 408 .30712 , R 408 .30713 , R 408 .30740 c, R 408 .30754 c, R 408 .30759 a, R 408 .30759b , R 408 .30760 , R 408 .30761 c, R 408 .30793 , R 408 .30795 , R 408 .30795 a, an d R
408 .30796 of th e Code ar e rescinded as follows:
PART 7. PLUMBING CODE
AMEND MEN TS AND ADD ITIO NS TO BASIC PLUMBING CODE
R 408 .30701 App li ca bl e code .
Rule 701 . Rules govern ing th e insta llat ion, repl acement, alterat ion, relocat ion, an d use of plum bing systems or plum bing mat erials sha ll be those conta ined in th e int ernat iona l plum bing code, 2000 edi tion, including appe ndices B, C, D, F, an d G, excep t for sections 103 .2, 103 .5, 104 .2, 106 .6.1, 106 .6.2, 106 .6.3, 107 .1.2, 107 .1.2.1, 107 .1.2.2, 107 .1.2.3, 109 .2 to
109 .7, 602 .3 to 602 .3.5.1, 608 .17 to 608 .17.8, 708 .3.2, 708 .3.6, an d 1106 .6. With th e
excep tions noted, th e code is adopted in th ese ru les by reference. All references to th e Int ernat iona l Building Code, Int ernat iona l Reside nt ial Code, Int ernat iona l En ergy Conservat ion Code, Int ernat iona l Electr ical Code, Int ernat iona l Mechan ical Code, an d Int ernat iona l Plum bing Code mean th e Michigan Building Code, Michigan Reside nt ial Code, Michigan Un iform En ergy Code, Michigan Electr ical Code, Michigan Mechan ical Code, an d Michigan Plum bing Code respe ctively. The code is available for inspection at th e Okemos office of th e Michigan dep artm ent of con sum er an d industr y services, bur eau of constru ction codes . The code ma y be purcha sed from th e Building Officials an d Code
Administrat ors Int ernat iona l, In cor porat ed, 4051 Flossm oor Road, Countr y Club Hills, Illinois 60478 , or from th e Michigan Dep artm ent of Consum er an d Industr y Services, Bur eau of Constru ct ion Codes , 2501 Woodlak e Circle, Okemos, Michigan 48864 , at a cost as of th e t ime of adoption of th ese ru les of $40 .00 each.
R 408 .30711 Titl e and scope .
Rule 711 . Sections 101 .1 an d 101 .2 of th e code ar e am ended to read as follows :
101.1. . Title. This part sha ll be kn own as th e Michigan plum bing code an d is hereina fter referr ed to as "th e plum bing code" or "th e code." This part sha ll contr ol all matt ers con cern ing th e insta llat ion, replacement , alterat ion, relocat ion, an d use of plum bing systems or plum bing mat erials as herein defined an d sha ll apply to existing or proposed buildings an d stru ctur es in th e stat e.
101.2. . Scope . The des ign an d insta llat ion of plum bing systems, including san itar y an d storm dra ina ge, san itar y facilities, medical gas systems, wat er supplies, storm wat er an d sewage disposal in buildings, sha ll com ply with th e requirement s of th e code . The des ign an d insta llat ion of gas piping, chilled wat er piping in conn ection with refrigerat ion pr ocess an d com fort coolin g, an d hot wat er piping in conn ection with building heat ing systems sha ll con form to th e requirement s of th e Michigan mechan ical code . The des ign an d insta llat ion of all fire sprink ler systems an d stan dpipe systems sha ll con form to th e requirement s of th e Michigan building code. Wat er an d dra ina ge conn ections to such insta llat ions sha ll be ma de in a ccor dan ce with th e requirement s of th e code .
Exception: Plum bing facilities with in 1- an d 2-fam ily dwellings sha ll be con stru cted an d ma inta ined in a ccor dan ce with th e Michigan reside nt ial code for 1- an d 2-fam ily dwellings.
R 408 .30712 Resc inded . R 408 .30713 Resc inded .
R 408 .30714 P lum bi ng official ; qua lifi cations .
Rule 714 . Section 103 .1 of th e code is am ended to read as follows :
103 .1. Genera l. The position of plum bing inspector is creat ed. The plum bing inspector sha ll be appoint ed in accordan ce with 1986 PA 54, MCL 338 .2301 et seq.
R 408 .30715 Pe rmits .
Rule 715 . Section 106 .4 of th e code is am ended to read as follows :
106 .4. By whom applicat ion is ma de. Applicat ion for a perm it sha ll be ma de by an auth orized ma ster plum ber licensed in accordan ce with 1929 PA 266 , MCL 338 .901 et seq. Exceptions:
1. Wat er service perm it s.
2. Building sewe r an d privat e sewe r perm it s.
R 408 .30716 Fees .
Rule 716 . Section 106 .6 of th e code is am ended to read as follows :
106 .6. Fees . The fees prescribed by section 22 of th e act sha ll be paid to th e en for cing agency of th e jur isdiction befor e a perm it to begin work for new con stru ct ion, alterat ion,
removal, demolition, or oth er building operat ion ma y be issued. In addition, an am endment to a perm it necessi tat ing an additiona l fee sha ll not be approved unt il th e additiona l fee is paid.
R 408 .30717 Rig h t of en try .
Rule 717 . Section 104 .5 of th e code is am ended to read as follows: 104 .5. Right of entr y. In th e dischar ge of dut ies, th e plum bing officia l or an auth orized represe ntat ive ma y ent er an y building, stru ctur e, or premises in th e jur isdiction to en for ce th e provisions of th e act an d th e code un der section 12 of th e act.
R 408 .30718 Violatio n pena lti es .
Rule 718 . Section 108 .4 of th e code is am ended to read as follows :
108.4. . Violat ion pena lt ies. A person who violat es a provision of th e code , who fails to con form with an y of th e requirement s th ereof, or who erects, insta lls, alters, or repairs plum bing work in violat ion of th e approved con stru ct ion docum ent s or directive of th e en for cing agency, or a perm it or cert ificat e issued un der th e provisions of th e code sha ll be assessed a fine in a ccor dan ce with section 23 of th e act.
R 408 .30719 Stop w ork orde rs.
Rule 719 . Section 108 .5 of th e code is am ended to read as follows :
108.5. . Stop work orders. Upon notice from th e en for cing agency of work on an y plum bing system that is being done contrar y to th e provisions of th e code or in a dan gerous or un safe mann er, th e work sha ll imm ediat ely cease. Notice sha ll be in a ccor dan ce with section 12 of th e act. A person who is served with a stop work order, except for work that th e person is directed to per form to remove a violat ion or un safe con dition is subject to th e pena lty provisions prescribed by section 23 of th e act.
R 408 .30720 Means of appea l.
Rule 720 . Section 109 .1 of th e code is am ended to read as follows :
109 .1. Mean s of appe al. A person ha s th e right to appe al a decision of th e en for cing agency to th e boar d of appe als. An applicat ion for appe al sha ll be based on a claim that th e tru e int ent of th e code or th e ru les govern ing con stru ct ion ha ve been in corr ectly int erpreted, th e provisions of th e code do not apply, or an equa l or bett er form of con stru ct ion is proposed. The applicat ion sha ll be filed in a ccor dan ce with section 14 of th e act.
R 408 .30728 Se w er depth .
Rule 728 . Section 305 .6.1 of th e code is am ended to read as follows :
305 .6.1. Sewe r dep th . A building sewe r that conn ects to a privat e disposal system sha ll be a minimum of 8 inches to th e top of th e pipe below finished gra de at th e point of sep t ic tank conn ection. Building sewe rs sha ll be insta lled a minimum of 42 inches below gra de.
Exception: When perm itt ed by th e code officia l.
R 408 .30735 Hot w ate r supp ly re qu ired .
Rule 735 . Section 607 .1 of th e code is am ended to read as follows :
607 .1. Where required. In occu pied stru ctur es, hot wat er sha ll be supplied to all plum bing fixtur es an d equipment ut ilize d for bath ing, han d washing, washing, culinar y pur poses , clean sing, laun dry, or building ma int enan ce.
Exceptions:
1. In nonr eside nt ial occu pan cies, hot wat er or tempered wat er sha ll be supplied for bath ing an d han d washing pur poses .
2. Tempered wat er sha ll be supplied to bath ing an d han d washing facilites in th e occu pan cies ident ified in subdivisi ons (a) to (h) of th is exception thr ough a contr ol valve that conform s to ASSE 1016 , th e stan dar d of th e American society of san itar y engineering, which is adopted in th ese ru les by reference. The stan dar d ma y be pur cha sed from th e American Society of San itar y En gineering, 901 Cant erbur y Road, Suite A, Westlak e, Ohio 44145 , at a cost as of th e t ime of adoption of th ese ru les of $40 .00 each, or from th e Michigan Dep artm ent of Consum er an d Industr y Services, Bur eau of Constru ct ion Codes , 2501 Woodlak e Circle, Okemos, Michigan 48864 , at a cost as of th e t ime of adoption of th ese ru les of $40 .00 each, plus ma iling cost s. This stan dar d ma y be inspected at th e Okemos office of th e Michigan dep artm ent of con sum er an d industr y services.
(a) Elementar y sch ools.
(b) Child car e cent ers.
(c) Day car e cent ers.
(d) Nurs eries.
(e) Adult group homes.
(f) Adult con gregat e homes. (g) Children’s cam ps.
(h ) At a ccessible plum bing fixtur es.
R 408 .30740 a Drainage piping in food sto rage areas .
Rule 740 a. Section 701 .9 is added to th e code to read as follows :
701 .9. Dra ina ge pipe prohibited. Exposed soil or waste piping sha ll not be perm itt ed above an y work ing, stora ge, or eat ing sur faces in food service esta blishm ent s.
R 408 .30740 c Resc inded .
R 408 .30741 c Beve rage dispense rs.
Rule 741 c. Sections 608 .16.1 an d 608 .16.4 of th e code ar e am ended to read as follows : 608 .16.1. Bevera ge dispe nsers. The wat er supply conn ection to car bonat ed bevera ge dispe nsers sha ll be protected against backflow by a backflow prevent er con form ing to ASSE 1022 or by an a ir gap. The backflow prevent er device an d th e piping downstr eam th erefrom sha ll not be a ffect ed by car bon dioxide gas. The ASSE 1022 stan dar d of th e American societ y of san itar y engineering, which is adopted in th ese ru les by reference, ma y be pur cha sed from th e American Society of San itar y En gineering, 901 Cant erbur y Road, Suite A, Westlak e, Ohio 44145 , at a cost as of th e t ime of adoption of th ese ru les of $40 .00 each, or from th e Michigan Dep artm ent of Consum er an d Industr y Services, Bur eau of Constru ct ion Codes , 2501 Woodlak e Circle, Okemos, Michigan 48864 , at a cost as of th e t ime of adoption of th ese ru les of $40 .00 each, plus ma iling cost s. This stan dar d ma y be
inspected at th e Okemos office of th e Michigan dep artm ent of con sum er an d industr y services.
608 .16.4. Conn ections to aut omat ic fire sprink ler systems an d stan dpipe systems. The pota ble wat er supply to aut omat ic fire sprink ler systems an d stan dpipe systems sha ll be protected against backflow by a double check-valve asse mbly or a reduced press ur e principle backflow prevent er.
Exception: Isolat ion of th e wat er distr ibut ion system is not required for deluge, preaction, or dry pipe systems.
R 408 .30744 e Main vent re quired .
Rule 744e . Section 903 .1 of th e code is am ended to read as follows :
903 .1. Sta ck required. Every building in which plum bing is insta lled sha ll ha ve at least 1 ma in sta ck which is not less than 3 inches in diam eter an d which sha ll run un diminished in size from th e building dra in thr ough to th e open air.
R 408 .30749 Ind ivid ua l venting re qu ired .
Rule 749 . Section 906 .4 is added to th e code to read as follows :
906 .4. Individua l vent ing required. If fixtur es oth er than wat er closets dischar ge int o only a 3-inch horizonta l bran ch downstr eam from a wat er closet, th en each fixtur e conn ecting less than 54 inches downstr eam from th e wat er closet flan ge sha ll be individua lly vent ed.
R 408 .30754b Ext ens io ns outside a st ruc ture.
Rule 754b . Section 904 .7 of th e code is am ended to read as follows :
904 .7. Extensions out side a stru ctur e. Vent pipes insta lled on th e exterior of th e stru ctur e sha ll be protected against freezing by insulat ion or heat , or both .
R 408 .30754 c Res cinded .
R 408 .30757 Horizo n tal drains w it h in bu ildi ngs and bu ildi ng se w e rs.
Rule 757 . Section 708 .3.1 of th e code is am ended to read as follows :
708 .3.1. Horizonta l dra ins with in buildings an d building sewe rs. All horizonta l dra ins with in buildings an d building sewe rs sha ll be provided with clean out s locat ed not more than 100 feet apart .
For un dergroun d piping that is more than 10 inches in diam eter, manh oles sha ll be provided an d locat ed at every ma jor chan ge of direction, gra de, elevat ion, or size of pipe or at int ervals of not more than 400 feet. Meta l cover s sha ll be provided for th e manh oles an d sha ll be of su fficient weight to meet loca l tra ffic an d loading con ditions.
With in buildings, manh ole covers sha ll be gastight an d th e manh ole sha ll be vent ed with not less than a 4-inch pipe.
R 408 .30758 Minimum num ber of fixt ures .
Rule 758 .Section 403 .1 of th e code is am ended to read as follows :
403 .1. Minimum num ber of fixtur es. Plum bing fixtur es sha ll be provided for th e type of occu pan cy an d in th e minimum num ber shown in Table 403 .1. Types of occu pan cies not shown in Table 403 .1 sha ll be con sidered individua lly by th e code officia l. The num ber of
occu pant s sha ll be determ ined in a ccor dan ce with th e Michigan building code . Occu pan cy classificat ion sha ll be determ ined in a ccor dan ce with th e Michigan building code .
Exceptions:
1. The actua l num ber of occu pant s determ ined by a support ing a ffida vit from th e owner or agency.
2. Han d washing sink s in food service esta blishm ent s sha ll be provided in a ccor dan ce with th e requirement s of th e Michigan dep artm ent of agricultur e.
3. Toilet facilities for public swimm ing pools sha ll be provided in a ccor dan ce with th e requirement s of th e Michigan dep artm ent of environm enta l qua lit y.
4. Toilet facilities for child car e cent er, day car e cent er an d nur sery sch ool facilities sha ll be provided in a ccor dan ce with th e requirement s of th e Michigan dep artm ent of con sum er an d industr y services.
5. Toilet facilities for children’s cam ps sha ll be provided in a ccor dan ce with th e requirement s of th e Michigan dep artm ent of con sum er an d industr y services.
R 408 .30759 a Resc inded . R 408 .30759b Resc inded . R 408 .30760 Resc inded . R 408 .30761 c Resc inded .
R 408 .30785 Discha rge .
Rule 785 . Section 504 .6.1 of th e code is am ended to read as follows :
504 .6.1. Dischar ge. Relie f valve dischar ge pipe sha ll be rigid pipe approved for wat er distr ibut ion with a rat ing of 210 degrees Fahr enh eit .
The dischar ge piping sha ll be th e sam e diam eter as th e relief valve out let an d sha ll dra in by gra vity flow. Valves sha ll not be conn ected in th e relief valve dischar ge pipe. Relie f valves sha ll not dischar ge so as to be a ha zar d, a potent ia l cau se of dama ge, or a nu isan ce. Dischar ge pipe from relief valves sha ll term inat e atm ospherically not more than 4 inches from th e floor with an unthr eaded end.
R 408 .30786 Subsoi l pump piping .
Rule 786 . Section 1113 .1.4 of th e code is am ended to read as follows :
1113 .1.4. Piping. Dischar ge piping sha ll meet th e requirement s of section 1102 .2, section 1102 .3, or section 1102 .4 of th e code an d sha ll include a gat e valve an d a full-flow check valve. Pipe an d fitt ings sha ll be th e sam e size as, or lar ger than , pum p dischar ge ta pping. Exception: When th e piping dischar ges atm ospherically above gra de only a check valve is required, locat ed on th e dischar ge piping from th e pum p or ejector.
R 408 .30791 De finitio ns .
Rule 791 . Section 202 of th e code is am ended to add th e followin g definitions:
”Auth orized ma ster plum ber” mean s a person who is licensed in a ccor dan ce with 1929 PA 266 , MCL 338 .901 et seq.
“Code officia l” mean s th e person appoint ed an d employed by a governm enta l subdivisi on char ged with th e administrat ion an d en for cement of th e stat e code or codes an d registered in accordan ce with th e requirement s of 1986 PA 54, MCL 338 .2301 et seq.
R 408 .30793 Resc inded . R 408 .30795 Resc inded . R 408 .30795 a Resc inded . R 408 .30796 Resc inded .
