MSHA is required to-issue regulations
requiring operators to maintain accurate records of employee
exposures to potentially toxic materials or harmful physical agents
which are required to be monitored or measured under any applicable
mandatory health or safety standard promulgated under this Act.
Airborne radon and radon daughters exist in every uranium mine and
in several other underground mining commodities. Radon is
radioactive gas. It diffuses into the underground mine atmosphere
through the rock and the ground water. Radon decays in a series of
steps into other radioactive elements, which are solids, called
radon daughters. Radon and radon daughters are invisible and
odorless. Decay of radon and its daughters results in emissions of
alpha energy.
There is a program change
enhancing the electronic submission option; however, it results in
no material change to the burden estimates. This submission
reflects an increase of 405 responses (from 100 to 505) and $25 in
maintenance and operations costs (up from no cost reflected in
ROCIS). This request also reflects a reduction of 298 burden hours
(from 800 to 502 hours). The number of responses and respondents
have increased since 2007, because the potential respondent
universe increased from two underground uranium mine operators to
three and two other underground non-uranium mines for a total of
five mines reporting. MSHA has included mailing costs in what is
shown in ROCIS data. The 2007 renewal of 1219-0003 included the
time that a miner actually took to take the samples. Upon
reconsidering what burden should be attributed to an information
collection subject to PRA and what constitutes an independent
substantive requirement, MSHA has determined that the time it takes
to draw the sample should be excluded from PRA hour and cost
estimates. MSHA health specialists estimate that instead of 5 hours
(as was estimated in 2007) just the actual paperwork of recording
the sampling results and performing the needed calculations will
take 0.5 hours. The same health specialists also estimate that it
will take 1.50 hours and not 1.25 hours for recordkeeping and
maintenance of the sampling results. This is also a change from the
2007 renewal.
On behalf of this Federal agency, I certify that
the collection of information encompassed by this request complies
with 5 CFR 1320.9 and the related provisions of 5 CFR
1320.8(b)(3).
The following is a summary of the topics, regarding
the proposed collection of information, that the certification
covers:
(i) Why the information is being collected;
(ii) Use of information;
(iii) Burden estimate;
(iv) Nature of response (voluntary, required for a
benefit, or mandatory);
(v) Nature and extent of confidentiality; and
(vi) Need to display currently valid OMB control
number;
If you are unable to certify compliance with any of
these provisions, identify the item by leaving the box unchecked
and explain the reason in the Supporting Statement.