ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 81

[EPA-R09-OAR-2010-0590; FRL-]

Determination of Attainment for PM10 for the Las Vegas Valley
Nonattainment Area, Nevada

AGENCY:  Environmental Protection Agency (EPA).

ACTION:  Proposed rule.

SUMMARY:  EPA proposes to determine that the Las Vegas Valley
nonattainment area in Nevada attained the National Ambient Air Quality
Standard (NAAQS) for particulate matter with an aerodynamic diameter of
less than or equal to a nominal ten micrometers (PM10) by the applicable
attainment date (December 31, 2006), and that the Las Vegas Valley
nonattainment area is currently attaining the standard.

DATES:  Comments must be received on or before [INSERT DATE 30 DAYS FROM
DATE OF PUBLICATION IN THE FEDERAL REGISTER].

ADDRESSES:  Submit comments, identified by docket number
EPA-R09-OAR-2010-0590, by one of the following methods:

Federal eRulemaking Portal:    HYPERLINK
"http://docket.epa.gov/rmepub/."  www.regulations.gov . Follow the
on-line instructions.

E-mail:    HYPERLINK "mailto:tax.wienke@epa.gov"  tax.wienke@epa.gov .

Mail or deliver:  Wienke Tax, Air Planning Office, EPA Region IX, 75
Hawthorne Street, San Francisco, CA 94105-3901. 

Please see the direct final rule which is located in the Rules section
of this Federal Register for detailed instructions on how to submit
comments.

FOR FURTHER INFORMATION CONTACT:  Wienke Tax at telephone number: (415)
947-4192, e-mail address:   HYPERLINK "mailto:tax.wienke@epa.gov" 
tax.wienke@epa.gov , or the above EPA, Region IX address.

SUPPLEMENTARY INFORMATION:  For further information, please see the
direct final action, of the same title, which is located in the Rules
section of this Federal Register. EPA is approving the attainment
determination as a direct final rule without prior proposal because EPA
views this as a noncontroversial action and anticipates no adverse
comments. A detailed rationale for the approval is set forth in the
preamble to the direct final rule. If EPA receives no adverse comments,
EPA will not take further action on this proposed rule.

If EPA receives adverse comments, EPA will withdraw the direct final
rule and it will not take effect. EPA will address all public comments
in a subsequent final rule based on this proposed rule. EPA will not
institute a second comment period on this action. Any parties interested
in commenting on this action should do so at this time. Please note that
if we receive adverse comment on an amendment, paragraph, or section of
this rule and if that provision may be severed from the remainder of the
rule, EPA may adopt as final those provisions of the rule that are not
the subject of an adverse comment.

______7/21/2010________		sb            ____

Dated: 					Keith Takata

Acting Regional Administrator,

EPA Region IX.

  PAGE   \* MERGEFORMAT  3 

