Records of tests and examinations are necessary to ensure that the ventilation system is being maintained and that changes which could adversely affect the integrity of the system or the safety of the miners are not occuring.
There has been a decrease in the number of Respondents (612 to 457). This is due to a decrease in the number of underground coal mines.
There was a decrease of 435,735 hours (1,824,456 to 1,388,721). The decrease in the number of mines has a direct reflection on the number of hours.
Cost: Although the number of mines has decrease there has been an increase. This is due to an increase in employee wages.
Responses: The large number of responses contained in the last report was a mistake.
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.