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California Code of Regulation- Title 8, Section 5157. Permit -Required r,)nfined Spaces. Page 6 of 14 <br />by subsection (c)(5)(B) have been taken, through a written certification that contains the date, the <br />location of the space, and the signature of the person providing the certification. The certification shall <br />be made before entry and shall be made available to each employee entering the space. <br />(6) When there are changes in the use or configuration of a non -permit confined space that might <br />increase the hazards to entrants, the employer shall reevaluate that space and, if necessary, reclassify it <br />as a permit -required confined space. <br />(7) A space classified by the employer as a permit -required confined space may be reclassified as a <br />non -permit confined space under the following procedures: <br />(A) If the permit space poses no actual or potential atmospheric hazards and if all hazards within the <br />space are eliminated without entry into the space, the permit space may be reclassified as a non -permit <br />confined space for as long as the non -atmospheric hazards remain eliminated. <br />(B) If it is necessary to enter the permit space to eliminate hazards, such entry shall be performed <br />under subsections (d) through (k). If testing and inspection during that entry demonstrate that the <br />hazards within the permit space have been eliminated, the permit space may be reclassified as a non - <br />permit confined space for as long as the hazards remain eliminated. <br />NOTE: Control of atmospheric hazards through forced air ventilation does not constitute elimination <br />of the hazards. Subsection (c)(5) covers permit space entry where the employer can demonstrate that <br />forced air ventilation alone will control all hazards in the space. <br />(C) The employer shall document the basis for determining that all hazards in a permit space have <br />been eliminated through a certification that contains the date, the location of the space, and the <br />signature of the person making the determination. The certification shall be made available to each <br />employee entering the space. <br />(D) If hazards arise within a permit space that has been declassified to a non -permit space under <br />subsection (c)(7), each employee in the space shall exit the space. The employer shall then reevaluate <br />the space and determine whether it must be reclassified as a permit space, in accordance with other <br />applicable provisions of this section. <br />(8) When an employer (host employer) arranges to have employees of another employer (contractor) <br />perform work that involves permit space entry, the host employer shall: <br />(A) Inform the contractor that the workplace contains permit spaces and that permit space entry is <br />allowed only through compliance with a permit space program meeting the requirements of this <br />section; <br />(B) Apprise the contractor of the elements, including the hazards identified and the host employer's <br />experience with the space, that make the space in question a permit space; <br />(C) Apprise the contractor of any precautions or procedures that the host employer has implemented <br />for the protection of employees in or near permit spaces where contractor personnel will be working; <br />(D) Coordinate entry operations with the contractor, when both host employer personnel and <br />contractor personnel will be working in or near permit spaces, as required by subsection (d)(11); and <br />(E) Debrief the contractor at the conclusion of the entry operations regarding the permit spaced <br />program followed and regarding any hazards confronted or created in permit spaces during entry <br />operations. <br />http://www.dir.ca.gov/title8/5157.html 6/4/99 <br />