(b) Impounding systems;
(c) Vapor barriers;
(d) Cargo transfer systems;
(e) Process, liquefaction, and vaporization equipment;
(f) Control rooms and stations;
(g) Control systems;
(h) Fire control equipment;
(i) Security communications systems; and
(j) Alternative power sources. The protective enclosure may be one or more separate enclosures surrounding a
single facility or multiple facilities.
(2) Ground elevations outside a protective enclosure must be graded in a manner that
does not impair the effectiveness of the enclosure.
(3) Protective enclosures may not be located near features outside of the facility, such as
trees, poles, or buildings, which could be used to breach the security.
(4) At least two accesses must be provided in each protective enclosure and be located to
minimize the escape distance in the event of emergency.
(5) Each access must be locked unless it is continuously guarded. During normal
operations, an access may be unlocked only by persons designated in writing by the
operator. During an emergency, a means must be readily available to all facility
personnel within the protective enclosure to open each access.
Sec. 193.2907 Protective enclosure construction.
(1) Each protective enclosure must have sufficient strength and configuration to obstruct
unauthorized access to the facilities enclosed.
(2) Openings in or under protective enclosures must be secured by grates, doors or
covers of construction and fastening of sufficient strength such that the integrity of
the protective enclosure is not reduced by any opening.
Sec. 193.2909 Security communications. A means must be provided for:
(1) Prompt communications between personnel having supervisory security duties and
law enforcement officials; and
(2) Direct communications between all onduty personnel having security duties and all
control rooms and control stations.
Sec. 193.2911 Security lighting. Where security warning systems are not provided for
security monitoring under Sec. 193.2913, the area around the facilities listed under Sec.
193.2905(a) and each protective enclosure must be illuminated with a minimum in service
lighting intensity of not less than 2.2 lux (0.2 ft candles) between sunset and sunrise.