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Federal Register ( Vol.68,No.44 / Wednesday,March 6,1991/Rules and Regulations 8807 Requirement A AamOrk mate Into and through the (5) Exterior deck,patio,or balcony maces are no mom than (issecovered dwelling unit 11/2inch below the floor level of the interior of the ' dwelling unit,unless they are constructed of impervious Section 100.205(cX3X)provides that all covered molds- material such as concrete,brick or flagstone.In such a mily dwellings with a building entrance on an actadble the surface is no more than 4 inches below the floor level rate shall be designed and constructed in such I manner of the interior of the dwelling unit,orlowerif required by that all premises within coveted multifamily dwelling units local building codc. contain an accessible route into end through the covered dwelling unit. (6) At the primary entry door to dwelling units with direct OoLrWe exterior aces,outside landing surfaces constructed of impervious materials such as amaete,brick or flagstone, are no more than 12 inch below the floor level of die Accessible routes into and through dwelling units would interior of the dwelling unit Theflnished subtotal this meet section 100.205(cX3X)if: area that is located immediately outside the entry may be sloped,up to l/B inch per foot(12 inches),fordrainage. (1) Aminimum clear width of36 inches isprovtded. Requkemmt 5. Light switches,electrical outlets.therm°. (2) In single-story dwelling units,changes in level within the Moos sod other environmental omtaols to accessible Inca. dwelling unit with heights between 1/4 inch and 12 inch dens. arc beveled with a slope no geeaterthm 1:2.Except for design features,such as a lotto,snares on&different level Section 100.2 5(c)(3)(ii)requiresthatagarveredmWu6- withinaroom(e.g.,asunken living room),changes in roily dweNnpwith a balding entrance on an accessible level greater than 1/2 inch are ramped or have othermeans mute shall be designed and constructed in such a mimes ofaccess.Where'single story dwellingunit has special that all premises within covered multifamily dwelling units design futures,all portions of the single-story unit,except contain light switches,decried outlets,thermostats,and the labor the sunken or raised area,are on an accessible oterenvironmenW controls in accessible locations. route;and Outdd'se (a) In single-story dwelling units with lofts,all spates other 4111, than the loft are on ml accessible mute. Light switches,elear7datlets,thernrastatsand other en- voonmenW consols would meet section 100.205(cX3Xfl) (b) Design features such as Quaked functionalifoperablepvuof the conwisare located no higher than areas do not interrupt the acasibk route through the 48 inches,and no lowuthao 15 inches,above the floor.If remainder of the dwelling emit. the reach is ova an obstruction(for example,an ovnhang- ingshelf)between 20 and 25 inches in depth,the maxi. (3) In multistory dwelling units in buildings with elevators,the mum height is reduced to 44'what for forward approach; story of the unit that is served by thebuildingelevator(a) or 46 inches for Bide approach,provided the obstruction is the primary entry to the unit,(b)compliuwith Require- (forexample,*kitchen base cabbies)istomon than 24 meets 2 through 7 with respect to the scorns located on the inches in depth. Obstructions should not extend more then entry/accessible floor,and(c)contains a bathroom or 25 inchesfromthewallbeneathaconuol.(SeeFig.2.) powder mom which complies with Requirement 7. (Note: multistory dwelling units in non-elevator buildings are cot Nate covered dwelling wits because,in such cases,them is no Controls or outlets that do not satisfy these specifindoos ground floor unit) am acceptable provided that comparable contmla or outlets (Le,that pafmra the same Sodom*are e within (4) Except asprovided in pbelow,graphs(5)sod(6)bel , the same s are acamT ac accordance with this thresholds at exterior doors,including sliding door backs, guideline for Requirement 5. are no higher than 3/41nch.Thresholds end changes in level atthes<locatiouace beveled with aslopenogreater than 12