<section xmlns="http://xml.house.gov/schemas/uslm/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" style="-uslm-lc:I80" id="id978e84a9-406b-11eb-af5b-e123fb3036ca" identifier="/us/usc/t30/s844"><num value="844">§ 844.</num><heading> Rock dust and gas hazards; controls</heading><content>
<p style="-uslm-lc:I11" class="indent0">The dust resulting from drilling in rock shall be controlled by the use of permissible dust collectors, or by water or water with a wetting agent, or by ventilation, or by any other method or device approved by the Secretary which is at least as effective in controlling such dust. Respiratory equipment approved by the Secretary and the Secretary of Health and Human Services shall be provided persons exposed for short periods to inhalation hazards from gas, dusts, fumes, or mist. When the exposure is for prolonged periods, other measures to protect such persons or to reduce the hazard shall be taken.</p>
</content><sourceCredit id="id978e84aa-406b-11eb-af5b-e123fb3036ca">(<ref href="/us/pl/91/173/tII/s204">Pub. L. 91–173, title II, § 204</ref>, <date date="1969-12-30">Dec. 30, 1969</date>, <ref href="/us/stat/83/764">83 Stat. 764</ref>; <ref href="/us/pl/96/88/tV/s509/b">Pub. L. 96–88, title V, § 509(b)</ref>, <date date="1979-10-17">Oct. 17, 1979</date>, <ref href="/us/stat/93/695">93 Stat. 695</ref>.)</sourceCredit>
<notes type="uscNote" id="id978e84ab-406b-11eb-af5b-e123fb3036ca">
<note style="-uslm-lc:I74" role="crossHeading" topic="statutoryNotes" id="id978e84ac-406b-11eb-af5b-e123fb3036ca"><heading class="centered"><b>Statutory Notes and Related Subsidiaries</b></heading></note>
<note style="-uslm-lc:I78" topic="changeOfName" id="id978e84ad-406b-11eb-af5b-e123fb3036ca">
<heading class="centered smallCaps">Change of Name</heading>
<p style="-uslm-lc:I21" class="indent0">“Secretary of Health and Human Services” substituted in text for “Secretary of Health, Education, and Welfare” pursuant to <ref href="/us/pl/96/88/s509/b">section 509(b) of Pub. L. 96–88</ref> which is classified to <ref href="/us/usc/t20/s3508/b">section 3508(b) of Title 20</ref>, Education.</p>
</note>
<note style="-uslm-lc:I74" topic="effectiveDate" id="id978e84ae-406b-11eb-af5b-e123fb3036ca"><heading class="centered smallCaps">Effective Date</heading><p style="-uslm-lc:I21" class="indent0">Section operative six months after <date date="1969-12-30">Dec. 30, 1969</date>, except to the extent an earlier date is specifically provided for in <ref href="/us/pl/91/173">Pub. L. 91–173</ref>, see <ref href="/us/pl/91/173/s509">section 509 of Pub. L. 91–173</ref>, set out as a note under <ref href="/us/usc/t30/s801">section 801 of this title</ref>.</p>
</note>
</notes>
</section>