§ 28-25-18 - Exemptions.
SECTION 28-25-18
§ 28-25-18 Exemptions. – (a) This chapter does not apply to the following boilers and pressure vessels:
(1) Boilers and pressure vessels under federal control.
(2) Boilers on motor vehicles, self-propelled boilers,ditching machines, cranes, pile drivers, wreckers, and steam shovels that areowned by railroads or railways.
(3) Boilers on steam locomotives under the jurisdiction ofthe United States Department of Transportation.
(4) Boilers on vessels within the waters of the state.
(5) Pressure vessels used for transportation and storage ofcompressed or liquefied gases when construction is in compliance withspecifications of the U.S. Department of Transportation and when charged withgas or liquid, marked, maintained, and periodically re-qualified for use, asrequired by appropriate regulations of the U.S. Department of Transportation.
(6) Pressure vessels located on vehicles operating under therules of other state or federal authorities and used for carrying passengers orfreight.
(7) Air tanks installed on the right of way of railroads andused directly in the operation of trains.
(8) Pressure vessels that do not exceed an inside diameter,width, height, or cross section of six (6) inches with no limitation on lengthor pressure.
(9) Pressure vessels having an internal or external workingpressure not exceeding fifteen (15) psig, with no limit on size.
(10) Pressure vessels with a nominal water containingcapacity of one hundred twenty (120) gallons or less for containing water underpressure, including those containing air, the compression of which serves onlyas a cushion; providing the vessels do not exceed three hundred (300) psi andone hundred eighty degrees (180°) F.
(11) Pressure vessels containing water heated by steam or anyother indirect means when none of the following limitations are exceeded:
(i) A heat input of two hundred thousand (200,000) BTU perhour.
(ii) A water temperature of two hundred ten degrees(210°) F.
(iii) A nominal water containing capacity of one hundredtwenty (120) gallons.
(12) Hot water supply boilers which are directly fired withoil, gas, electricity, or solid fuel when none of the following limitations isexceeded:
(A) Heat input of two hundred thousand (200,000) BTU per hour.
(B) Water temperature of two hundred ten degrees (210°) F.
(C) Nominal water capacity of one hundred twenty (120)gallons.
(ii) These exempt hot water supply boilers shall be equippedwith ASME-National Board approved safety valves.
(13) Approved pressure vessels (hot water heaters listed by anationally recognized testing agency), with approved safety devices includingpressure temperature relief valve, with a nominal water containing capacity ofone hundred twenty (120) gallons or less having a heat input of two hundredthousand (200,000) B.T.U. per hour or less, used solely for hot water supply atpressure of one hundred sixty (160) pounds per square inch or less, and attemperatures of two hundred ten degrees (210°) Fahrenheit or less;provided, that such pressure vessels are not installed in places of publicassembly such as schools, child care centers, public and private hospitals,nursing and boarding homes, churches, public buildings, or any similar place ofpublic assembly.
(14) Boilers and pressure vessels in the care, custody andcontrol of research facilities and used solely for research purposes whichrequire one or more details of non-code construction or which involvedestruction or reduced life expectancy of those vessels.
(15) Pressure vessels or other structures or components thatare not considered to be within the scope of ASME Code Section VIII.
(16) Antique boilers and pressure vessels whether or not usedin public, nonprofit, engineering, and/or scientific museums and operated foreducational, historical, or exhibition purposes with shell diameter less thantwelve inch (12") and with a grate surface area of less than one square foot.
(b) The following boilers and pressure vessels are exemptfrom the requirements of §§ 28-25-11, 28-25-12, and 28-25-13:
(1) Steam boilers used for heating purposes carrying apressure of not more than fifteen (15) pounds per square inch gauge, and whichare located in private residences or in apartment houses of less than six (6)family units provided the boiler heat input does not exceed four hundredthousand (400,000) BTU per hour.
(2) Hot water heating boilers which are located in privateresidences or in apartment houses of less than six (6) family units providedthe boiler heat input does not exceed four hundred thousand (400,000) BTU perhour.
(3) Hot water boilers and hot water heaters operated atpressure not exceeding one hundred sixty (160) pounds per square inch gauge, ortemperatures not exceeding two hundred fifty degrees (250°) F. which arelocated in private residences or in apartment houses of less than six (6)family units provided the boiler or hot water heater is not in a place ofpublic assembly as delineated in subdivision (a)(13) of this section.
(4) Pressure vessels on remote oil or gas producing leaselocations that have fewer than ten buildings intended for human occupancy perone-quarter (0.25) square mile and where the closest building is at least twohundred twenty (220) yards from any vessel.
(5) Pressure vessels that do not exceed:
(i) Five (5) cubic feet in volume and twenty-five (25) psigpressure; or
(ii) One and one-half (1.5) cubic feet in volume and sixhundred (600) psig pressure.
(6) Air tanks at gas or service stations used for inflationof tires on automobiles or other vehicles.