The National Emission Standards for
Hazardous Air Pollutants (NESHAP) for the regulations published at
40 CFR Part 63, Subpart TTTTT were proposed on January 22, 2003,
promulgated on October 10, 2003, and amended on April 20, 2006.
These regulations apply to existing and new facilities that perform
primary magnesium refining where the total hazardous air pollutants
(HAPs) emitted are greater than, or equal to, 10 tons per year for
each HAP, or where the total HAPs emitted are greater than, or
equal to, 25 tons per year of any combination of HAPs. New
facilities include those that commenced construction or
reconstruction after the date of proposal. This information is
being collected to assure compliance with 40 CFR Part 63, Subpart
TTTTT. In general, all NESHAP standards require initial
notifications, performance tests, and periodic reports by the
owners/operators of the affected facilities. They are also required
to maintain records of the occurrence and duration of any startup,
shutdown, or malfunction in the operation of an affected facility,
or any period during which the monitoring system is inoperative.
These notifications, reports, and records are essential in
determining compliance, and are required of all affected facilities
subject to NESHAP.
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.