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12
<br />CHAPTER 15. ~ REGISTRATION, LICENSING, AND
<br />CERTIFICATES OF QUALIFICATION.
<br />1515.01 General provisions.
<br />When deemed necessary by the Board of
<br />Building Code Appeals, there shall be re-
<br />quired by and under regulations adopted by
<br />the Board of Building .Code Appeals:
<br />i. The registration of .all building con-
<br />tractors and all contractors of refrigeration,
<br />heating, piping, and air conditioning;
<br />ii. The licensing of all electrical contrac-
<br />tors, master plumbers, and journeymen
<br />plumbers.
<br />iii. Certificates of qualification for all
<br />welders and welding inspectors of structural
<br />steel field construction, concrete inspectors
<br />and steel inspectors on field construction.
<br />iv. The registration, licensing or certifi-
<br />cation of qualification, of any other person
<br />or persons performing work or providing
<br />services under this Dwelling House Code.
<br />1515.02 Home owners' exception.
<br />No provision of this Dwelling House Code
<br />or any regulation adopted by authority of
<br />this Dwelling House Code shall be inter-
<br />preted to require that the owner of a single
<br />or one-family dwelling shall be licensed or
<br />registered or hold a certificate of qualifica-
<br />tion personally to perform work upon the
<br />premises occupied, or to be occupied, by the
<br />owner thereof as such owner's established
<br />residence. All such work shall be done by
<br />said owner with the assistance only of any
<br />member of his family or household and said
<br />work shall be done in conformity with the
<br />provisions of this Dwelling House Cade and
<br />rules or regulations promulgated thereun-
<br />der,.and.no work shall be done unless all
<br />permits, inspections, and approvals required
<br />by this Dwelling House Code are secured.
<br />1515.03 .Public utility organizations' excep-
<br />tion.
<br />No: provision. of this Dwelling House Code
<br />shall be interpreted to require licenses, regis-
<br />tration, or certificates o£ qualification for
<br />officials or_ employees, of -public utility or=
<br />ganizations to engage in the installation,
<br />alteration, repair, •maintenance, or utiliza-
<br />tion of any device; appliance; installation; or
<br />appurtenance.forming part of the equipment
<br />for generation,.transmission, or.distribution
<br />of any commodity or ~ service which such
<br />public utility-organization is-authorized by
<br />law to furnish or provide.
<br />1515.04 Applications and examinations.
<br />(a) Form. All applications for certificates
<br />of registration, licenses, and certificates of
<br />qualification shall be in the form prescribed
<br />by the Board of Building Code Appeals.
<br />(b) Sworn application. Applications for
<br />certificates of registration and for licenses,
<br />and .for those certificates of qualification for
<br />which a renewal fee is prescribed, shall be
<br />sworn to by the applicant before a notary
<br />public.
<br />(c) Time of examination. Examinations
<br />shall be held at the discretion of the Board
<br />of Examiners. Notice of the time and place
<br />of such examinations shall be sent by mail
<br />to all applicants on record when such ex-
<br />aminations are scheduled.
<br />(d) Written or oral examination. Exami-
<br />nations shall be in whole or in part in
<br />writing; provided that when an applicant
<br />for a certificate of registration, license- or
<br />certificate of qualification holds a valid
<br />license or certification of corresponding char-
<br />acter issued by a state, county, another
<br />municipality or an accredited examining
<br />board, and has been actively engaged in the
<br />work authorized by such license or certifi-
<br />cation for a period of 5 or more years, the
<br />examination may be limited; at the discre=
<br />tion of the Board of Building Code Appeals,
<br />to an oral examination. However, should
<br />such applicant fail to prove his qualifications
<br />under oral examination, he shall be entitled
<br />to take the regular written examinations
<br />without payment of an additional fee.
<br />(e) Records. All applications for registra-
<br />tion, licenses and certificates of qualification
<br />and all question papers, answer papers, and
<br />other data forming the basis of a certifica-
<br />tion for registration, license, or qualification,
<br />or the refusal thereof, shall be kept on file
<br />for not less than 3 years.
<br />1515.05 Boards of Examiners. -
<br />The Board of Building.Code.?,ppeals may,
<br />if it so elects by resolution,:act as,the Board
<br />of Examiners' in ~ any "or all registrations,
<br />licensing or certification" of qualification;
<br />1515.06 Appointment of Board of : Ex-
<br />amiriers~ _
<br />When the Board of Building Cbde Appeals
<br />recommends the establishment of a=separate
<br />Board of Examiners for any particular regis=
<br />tration, licensing or certification of qualifica-
<br />r i
<br />
<br />• •
<br />113
<br />Plumbing
<br />§ 1593.82
<br />ing branch vents, relief vents, circuit vents,
<br />or loop vents, shall be at least 6 inches above
<br />the flood-level rim of the highest fixture
<br />served.
<br />1593.76 Fixture vents.
<br />(a) Distance of trap from vent. The inlet
<br />of any trap shall be as close to the fixture as
<br />practicable, consistent with its location and
<br />effectiveness as determined by the Building
<br />Official. Each fixture trap shall have a pro-
<br />tecting vent so located that the developed
<br />length of the fixture drain from the trap weir
<br />to the vent fitting is not more than 3 feet, ex-
<br />cept where otherwise permitted by the
<br />Building Official, particularly in alterations.
<br />(b) Level of vent pipe connection. Except
<br />for water closets and similar fixtures, the
<br />vent pipe opening from a soil or waste pipe
<br />shall not be below the top weir of 'the trap.
<br />(c) Building drain branch or extension.
<br />When the developed length of a branch or
<br />extension of a building drain exceeds 30
<br />feet, such branch or extension shall be
<br />vented by a vent stack equal in diameter to
<br />the largest required size of trap wasting into
<br />such branch or extension, but not less than
<br />2 inches in diameter. This provision shall not
<br />apply to a branch or extension for down-
<br />spout, ~, yard drains, area drains or subsoil
<br />catch basins.
<br />1593.77 Fixtures back to back.
<br />Two fixtures set back to back, within the
<br />distance allowed between a trap and vent,
<br />may be served with. one continuous soil or
<br />waste vent pipe, provided that each fixture
<br />wastes separately into an approved double
<br />fitting having inlet openings at the same
<br />level,
<br />1593.78 Common vent.
<br />(a) Individual vent. An individual vent,
<br />installed vertically; may be used as a com-
<br />mon or dual vent for two fixture traps when
<br />both fixture drains connect with a vertical
<br />drain at the same level.
<br />(b) Common vent. A common vent may
<br />be'used for two fixtures set on the same floor
<br />level but. connecting at different elevations
<br />in the stack, provided the upper fixture is riot
<br />a:water closet, and the diameter of the stack
<br />is not less than that of the lower fixture drain
<br />and is at least. one pipe size larger than the
<br />upper fixture drain.
<br />1593.79 Vents for fixture traps below trap
<br />.dip..
<br />Fixture drains-shall be vented within the
<br />hydraulic gradient between the, trap outlet
<br />and vent connection. If any stack has fix-
<br />tures entering at different elevations, the
<br />fixtures, other than that fixture entering at
<br />the highest level, shall be vented except as
<br />may be otherwise permitted in this Chapter
<br />93.
<br />1593.80 Wet venting.
<br />(a) Single bathroom group., A single
<br />bathroom group of fixtures may be installed
<br />with the drain from aback-vented lavatory,
<br />kitchen sink or combination fixture serving
<br />as a wet vent for a bathtub or shower stall
<br />and for the water-closet provided,
<br />i. not more than one fixture.unit.is drained
<br />into a lr/z-inch diameter wet vent or not
<br />more than 4 fixture units drain into a 2-inch
<br />diameter wet vent, and
<br />ii, the horizontal branch connects to the
<br />stack at the same level as the water-closet
<br />drain when installed below the top floor or
<br />at the same level or below water-closet drain
<br />when installed on the top floor, or the hori-
<br />zontal branch connects into the water-closet
<br />bend.
<br />(b) Double bathroom group. Bathroom
<br />groups back to back on top floor, consisting
<br />of two lavatories and two bathtubs or shower
<br />stalls, may be installed on the same horizon-
<br />tal branch with a common vent for the lava-
<br />tories and with no back vent for the bathtubs
<br />or shower stalls and for the water-closets,
<br />provided the wet vent is not less 'than 2
<br />inches in diameter and the length of the fix-
<br />ture drain does not exceed that required in
<br />subsection 1593.76 (a) .
<br />1593.81 Branch soil and waste extension.
<br />Any soil or waste branch on which a
<br />vent or back vent is required, extending•
<br />from the building drain or main to any fix-
<br />ture above the first floor, or which exceeds
<br />twenty-five (25) feet from any main stack
<br />or vented building drain, shall be continued
<br />full size through the roof in the same manner
<br />as required for stacks, or may be returned
<br />full size to the soil or waste vent or main
<br />vent pipe.
<br />1593;82 Back vents not required.
<br />(a) Two fixtures into a double Y or TY.
<br />Where two fixtures located'on the same floor
<br />discharge into a double Y or TY in a soil or
<br />waste stack, they need not be back-vented if
<br />such fixtures do not exceed the limits estab=
<br />lished in Section 1593.76, and there, is: ;no
<br />other fixture above them.
<br />(b) Leader, backwater trap, "yard drain. -- -
<br />No vent shall be required- for-a leader, trap,
<br />
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