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POTENTIAL PROCEDURES FOR HAZARD <br /> HAZARDS q REDUCTION <br /> 7.Confined spaces cont. " 7.The buddy system must be <br /> utilized when working <br /> within a confined space <br /> (i.e. if the entry <br /> requires the person's <br /> head to be below ground: <br /> level or the person is <br /> working in a manhole or <br /> other space in which an <br /> exit is restricted or not <br /> easily accessible. <br /> Note• Entry into <br /> shallower vaults will not <br /> require the buddy system <br /> if the atmosphere meets <br /> GTI criteria (see page <br /> 19) via the one of the <br /> following means: (1) <br /> installation of a vent- <br /> ilation system (2) man <br /> 3 hole cover has been re- <br /> moved 5 minutes prior to <br /> ` entering the space. In <br /> both cases, air monitor- <br /> ing is required con- <br /> tenuously. - <br /> f <br /> i I <br /> 4 . <br /> -13- <br />