§ 817.64 - Use of explosives: General performance standards.

§ 817.64 Use of explosives: General performance standards.

(a)

(1) You must

The operator shall notify, in writing, residents within 1⁄2 mile of the blasting site and local governments of the proposed times and locations of blasting operations.

(2) You may provide this notice

Such notice of times that blasting is to be conducted may be announced weekly, but in no case less than 24 hours before blasting will occur.

(b) You must conduct all blasting between sunrise and sunset, unless the regulatory authority approves night-time blasting based upon a showing that the public will be protected from adverse noise and other impacts. The regulatory authority may specify more restrictive time periods for blasting.

(c)

(1) You may conduct unscheduled blasts

Unscheduled blasts may be conducted only where public or operator health and safety so

require

requires and for emergency blasting actions.

(2)

When

you conduct

an operator conducts an unscheduled surface blast

, you must use audible signals to

incidental to underground coal mining operations, the operator, using audible signals, shall notify residents within 1⁄2 mile of the blasting site

. (3) You must

and document the reason

for the unscheduled blast

in accordance with § 817.68(

c

p).

(

16) of this part.

c) All blasting shall be conducted between sunrise and sunset unless nighttime blasting is approved by the regulatory authority based upon a showing by the operator that the public will be protected from adverse noise and other impacts. The regulatory authority may specify more restrictive time periods for blasting.

[48 FR 9809, Mar. 8, 1983, as amended at 81 FR 93418, Dec. 20, 2016; 82 FR 54999, Nov. 17, 2017]