the site-controlling employer and others who are performing work at such site (including independent contractors). For purposes of this subparagraph, the term site-controlling employer means the employer that has primary control over a work site at which employees of more than one employer work, such as by hiring or coordinating the work of other employers working at the site. . 313. No loss of employee pay for inspections Section 8(e) of such Act ( 29 U.S.C. 657(e) ) is amended by inserting after the first sentence the following: Time spent by an employee participating in or aiding any such inspection shall be deemed to be hours worked and no employee shall suffer any loss of wages, benefits, or other terms and conditions of employment for having participated in or aided any such inspection. . 314. Investigations of fatalities and significant incidents Section 8 of such Act ( 29 U.S.C. 657 ), as amended by sections 311 through 313, is further amended by adding at the end the following new subsection: (i) Investigation of fatalities and serious incidents (1) In general The Secretary shall investigate any significant incident or an incident resulting in death that occurs in a place of employment. (2) Evidence preservation If a significant incident or an incident resulting in death occurs in a place of employment, the employer shall promptly notify the Secretary of the incident involved and shall take appropriate measures to prevent the destruction or alteration of any evidence that would assist in investigating the incident. The appropriate measures required by this paragraph do not prevent an employer from taking action on a worksite to prevent injury to employees or substantial damage to property or to avoid disruption of essential services necessary to public safety, provided that if an employer takes such action, the employer shall notify the Secretary of the action in a timely fashion. (3) Definitions In this subsection: (A) Incident resulting in death The term incident resulting in death means an incident