Main fans for all underground metal
and nonmetal gassy mines must have pressure-recording systems. The
fans are required to be examined daily while operating if persons
are underground. The pressure-recording systems indicate whether
the fans are in good operating condition. The pressure recordings
are required to be kept one year.
There has been a decrease of
340 burden hours (from 2,386 to 2,046). This is due to the decrease
in the estimate of the number of mines which results in a reduction
of the burden for a supervisor to certify the inspection by
countersigning.
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.