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DOT/FAA

RIN: 2120-AJ34

Publication ID: Spring 2013

Title: Supercooled Large Droplet Icing Conditions
Abstract: This rulemaking would amend the airworthiness standards applicable to certain transport category airplanes certificated for flight in icing conditions and the icing airworthiness standards applicable to certain aircraft engines. The rulemaking would improve safety by addressing supercooled large drop icing conditions for transport category airplanes most affected by supercooled large drop icing conditions, mixed phase and ice crystal conditions for all transport category airplanes, and supercooled large drop, mixed phase, and ice crystal icing conditions for all turbine engines. This rulemaking is the result of information gathered from a review of icing accidents and incidents.
Agency: Department of Transportation(DOT)	Priority: Other Significant
RIN Status: Previously published in the Unified Agenda	Agenda Stage of Rulemaking: Final Rule Stage
Major: No	Unfunded Mandates: No
CFR Citation: 14 CFR 23 14 CFR 25
Legal Authority: 49 USC 44702 49 USC 106(g) 49 USC 40113 49 USC 44701 49 USC 44704

Legal Deadline:

Action	Source	Description	Date
Final	Statutory	Final Rule	11/29/2012

Timetable:

Action	Date	FR Cite
NPRM	06/29/2010	75 FR 37311
NPRM Comment Period Extended	08/16/2010	75 FR 49865
NPRM Comment Period End	08/30/2010
NPRM Extended Comment Period End	09/29/2010
Final Rule	03/00/2014

Regulatory Flexibility Analysis Required: No	Government Levels Affected: None
Small Entities Affected: Businesses	Federalism: No
Included in the Regulatory Plan: No
International Impacts: This regulatory action will be likely to have international trade and investment effects, or otherwise be of international interest.
RIN Information URL: www.regulations.gov	Public Comment URL: www.regulations.gov
RIN Data Printed in the FR: No
Agency Contact: Robert Hetman Department of Transportation Federal Aviation Administration 2200 South 216th Street, Des Moines, WA 98198 Phone:206 231-3171 Email: robert.hetman@faa.gov