The contingency plan must be reviewed, and immediately amended, if necessary, whenever:
(a) Applicable regulations are revised;
(b) The plan fails in an emergency;
(c) The facility changes--in its design, construction, operation, maintenance, or other circumstances--in a way that materially increases the potential for fires, explosions, or releases of hazardous waste or hazardous waste constituents, or changes the response necessary in an emergency;
(d) The list of emergency coordinators changes; or
(e) The list of emergency equipment changes. [45 FR 33232, May 19, 1980, as amended at 50 FR 4514, Jan. 31, 1985]