Federal Register / Vol. 69, No. 188 / Wednesday, September 29, 2004 / Notices 58213

agencies of the United States 

Government and will remain in place 

for two years from the effective date, 

except to the extent that the Secretary of 

State or Deputy Secretary of State may 

subsequently determine otherwise. A 

new determination will be made in the 

event that circumstances change in such 

a manner as to warrant a change in the 

duration of sanctions.

Dated: September 24, 2004. 

Susan F. Burk, 

Acting Assistant Secretary of State for 

Nonproliferation, Department of State.

[FR Doc. 04–21790 Filed 9–28–04; 8:45 am] 

BILLING CODE 4710–27–P

DEPARTMENT OF STATE

[Public Notice 4840] 

United States Climate Change Science 

Program

ACTION: Request expert review of the 

Intergovernmental Panel on Climate 

Change (IPCC) and Technology and 

Economic Assessment Panel (TEAP) 

‘‘Special Report on Safeguarding the 

Ozone Layer and the Global Climate 

System: Issues Related to 

Hydrofluorocarbons and 

Perfluorocarbons’’ (SROC). 

SUMMARY: In addition to periodic 

assessments of the science, impacts, and 

socio-economic aspects of climate 

change, the IPCC provides, on request, 

advice to the Conference of the Parties 

to the United Nations Framework 

Convention on Climate Change 

(UNFCCC) and its bodies. The Eighth 

Conference of Parties to the UNFCCC 

and the Fourteenth Meeting of the 

Parties to the Montreal Protocol invited 

the IPCC and TEAP to prepare a special 

report on ozone and climate by early 

2005. The report assesses scientific and 

technical information relating to 

decisions and policies on alternatives to 

ozone-depleting substances, thus 

contributing to the objectives of both the 

Montreal Protocol and the UNFCCC. 

The report covers chemicals in use or 

likely to be used in the next decade. A 

Steering Committee from IPCC Working 

Group I and III and TEAP is overseeing 

the preparation of this Special Report, 

which is being written by a team of over 

100 authors under established IPCC 

rules and procedures. 

The IPCC Secretariat has informed the 

U.S. Department of State that the 

second-order SROC draft is available for 

expert and Government review. The 

Climate Change Science Program Office 

(CCSPO) is coordinating collection of 

U.S. expert comments and the review of 

these collations by panels of Federal 

scientists and program managers to 

develop a consolidated U.S. 

Government submission. Instructions on 

how to format comments are available at 

http://www.climatescience.gov/Library/

ipcc/sroc-review.htm, as is the 

document itself. Comments must be sent 

to CCSPO by 2 November 2004 to be 

considered for inclusion in the U.S. 

Government collation.

TIME AND DATE: Properly formatted 

comments should be sent to CCSPO at 

sroc-USGreview@climatescience.gov by 

COB Tuesday, 2 November 2004. 

Include report acronym and reviewer 

surname in e-mail subject title to 

facilitate processing.

FOR FURTHER INFORMATION CONTACT:

David Dokken, U.S. Climate Change 

Science Program, Suite 250, 1717 

Pennsylvania Ave, NW., Washington, 

DC 20006 (http://

www.climatescience.gov).

Dated: September 22, 2004. 

Edward J. Fendley 

Office Director, Acting, Office of Global 

Change, Bureau of Oceans and International 

Environmental and Scientific Affairs, 

Department of State.

[FR Doc. 04–21698 Filed 9–28–04; 8:45 am] 

BILLING CODE 4710–09–P

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration 

[Advisory Circular Number AC 23–17B] 

Advisory Circular on Systems and 

Equipment Guide for Certification of 

Part 23 Airplanes and Airships

AGENCY: Federal Aviation 

Administration, DOT.

ACTION: Notice of availability; request 

for comments. 

SUMMARY: This notice announces a 

Federal Aviation Administration (FAA) 

proposed advisory circular that sets 

forth an acceptable means, but not the 

only means of showing compliance with 

Title 14 Code of Federal Regulations (14 

CFR), part 23, for the certification of 

systems and equipment in normal, 

utility, acrobatic, and commuter 

category airplanes and airships. The 

policy in this advisory circular is 

considered applicable for airship 

projects; however, the certifying office 

should only use specific applicability 

and requirements if they are determined 

to be reasonable, applicable and 

relevant to the airship project. This 

advisory circular applies to subpart D 

from 23.671 and subpart F. This 

advisory circular both consolidates 

existing policy documents, and certain 

advisory circulars that cover specific 

paragraphs of the regulations, into a 

single document and adds new 

guidance. This notice is necessary to 

advise the public of this FAA advisory 

circular and give all interested persons 

an opportunity to present their views on 

it.

DATES: Send your comments by October 

29, 2004.

Discussion: We are making this 

proposed advisory circular available to 

the public and all manufacturers for 

their comments.

ADDRESSES: Copies of the proposed 

advisory circular, AC 23–17B, may be 

requested from the following: Small 

Airplane Directorate, Standards Office 

(ACE–110), Aircraft Certification 

Service, Federal Aviation 

Administration, 901 Locust Street, 

Room 301, Kansas City, MO 64106. The 

proposed advisory circular is also 

available on the Internet at the following 

address http://www.airweb.faa.gov/AC.

Send all comments on this proposed 

advisory circular to the individual 

identified under FOR FURTHER

INFORMATION CONTACT.

FOR FURTHER INFORMATION CONTACT:

Leslie B. Taylor, Federal Aviation 

Administration, Small Airplane 

Directorate, Regulations & Policy, ACE–

111, 901 Locust Street, Room 301, 

Kansas City, Missouri 64106; telephone: 

(816) 329–4134; fax: 816–329–4090; email: leslie.b.taylor.@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite your comments on this 

proposed advisory circular. Send any 

data or views as you may desire. 

Identify the proposed Advisory Circular 

Number AC 23–17B on your comments, 

and if you submit your comments in 

writing, send two copies of your 

comments to the above address. The 

Small Airplane Directorate will consider 

all communications received on or 

before the closing date for comments. 

We may change the proposal contained 

in this notice because of the comments 

received. 

Comments sent by fax or the Internet 

must contain ‘‘Comments to proposed 

advisory circular AC 23–17B’’ in the 

subject line. You do not need to send 

two copies if you fax your comments or 

send them through the Internet. If you 

send comments over the Internet as an 

attached electronic file, format it in 

either Microsoft Word 97 for Windows 

or ASCII text. 

State what specific change you are 

seeking to the proposed advisory 

circular and include justification (for