30 CFR 57.3461 - Rock bursts.
(1) Within twenty four hours report to the nearest MSHA office each rock burst which:
(i) Causes persons to be withdrawn;
(ii) Impairs ventilation;
(iii) Impedes passage; or
(iv) Disrupts mining activity for more than one hour.
(b) The plan shall include -
(1) Mining and operating procedures designed to reduce the occurrence of rock bursts;
(2) Monitoring procedures where detection methods are used; and
(c) The plan shall be updated as conditions warrant.
(d) The plan shall be available to an authorized representative of the Secretary and to miners or their representatives.