December 2006
	Date			Item
	12/21/06			Response to a letter requesting permission to experiment with yellow-green crosswalk markings which do not comply with the national standards contained in the MUTCD
	12/20/06			Response to a letter requesting official interpretation regarding Part 7 of the MUTCD
	12/19/06			Response to a request to experiment with adding distance information to mainline specific service signs
	12/7/06			Response to a letter requesting formal approval for CALTRANS to participate in the use of Clearview fonts.
	12/7/06			Response to a letter requesting an approval to use the wayside horn system on a blanket basis statewide in California
	12/7/06			Response to a letter requesting approval to use retroreflective yellow borders on traffic signal backplates on a blanket basis statewide in California
	12/7/06			Response to a letter requesting permission to experiment with the RV Friendly Symbol Sign
	12/1/06			Response to a request to experiment with "Green Colored Bike Lane Markings" in St. Petersburg, Fla.

November 2006
	Date			Item
	11/30/06			Request for an official interpretation of information in the MUTCD addressing street sign names
	11/29/06			Response to a request to experiment with colored pavement and various transverse pavement markings that are not compliant with the MUTCD
	11/29/06			Response to a letter requesting approval to use the flashing yellow arrow display for permissive left turns on a blanket statewide basis in Minnesota
	11/17/06			Response to a letter requesting approval to experiment with fishhook-shaped arrows on signs and pavement markings for roundabout approaches
	11/15/06			Response to a letter requesting interim approval to display logo panels on service signs
	11/8/06			Response to a letter requesting approval to use the flashing yellow arrow display for permissive left turns city wide in El Cajon, Calif.
	11/6/06			Letter requesting approval of the flashing yellow arrow display for permissive left turn on a blanket basis statewide in Utah
	11/1/06			Response to a letter suggesting that highway Speed Limit Signs include messages showing the metric speed in kilometers per hour along with the speed limit in miles per hour

October 2006
	Date			Item
	10/31/06			Response to a request to approve an experiment with colored pavement for exclusive bus lanes to enhance visibility and prominence and further discourage use of such lanes by non-authorized vehicles
	10/31/06			Response to a letter requesting permission to experiment at the I-93 Hookett toll plaza (N.H.) with purple signal indications to call attention to the signs on the plaza's canopy that identify the lanes restricted to vehicles equipped with EZ-Pass electronic toll collection transponders
	10/31/06			Response to a letter requesting permission to expand a current experiment with rectangular shaped flashing warning beacons in St. Petersburg, Fla.
	10/25/06			Response to a request for Va.-DOT to implement the option of displaying up- to 12 logo panels for any one specific service type by using not more than two specific service signs in accordance with the FHWA interim approval issued Sept. 21
	10/25/06			Response to a letter requesting that the FHWA consider adding warning signs for "Autistic Child Area" or "Handicap Child Area" to the MUTCD
	10/23/06			Response to a request for approval for the S.C.-DOT to participate in the use of Clearview fonts in accordance with the FHWA interim approval
	10/23/06			Response to a letter requesting approval to use the flashing yellow arrow display for permissive left-turns on a blanket basis citywide in Fayetteville, N.C.
	10/17/06			Response to a letter that provided crash data for the three years before and the first two years after implementation of an experiment with the flashing yellow arrrow display for a protected-permissive left-turn movement at a Lacey, Wash. intersection
	10/12/06			FHWA Memorandum (Subject: INFORMATION: Traffic Control Strategies for Toll Plazas)
	10/11/06			Request to a suggestion that an option be added to section 2A.13 of the MUTCD to allwo the Recreational and Cultural Interest Area Symbols discussed in Section 2H be used for other categories of signs
	10/6/06			Response to a letter requesting permission to experiment with a combination pedestrian and bicycle sign for a multi-use pathway in Idaho
	10/6/06			Request for interpretation of Part 10 of the MUTCD regarding the use of special light rail transit traffic signal indications to control a bus "queue jumper'
	10/4/06			Response to Senator Richard D. Lugar (R.-Ind.) regarding the use of a symbol sign to notify drivers of locations where stations have E-85 fuel available
	10/2/06			Response to a request to interpret the use of commemorative signs on multi-routes in Kansas

September 2006
	Date			Item
	9/26/06			Response to a recommendation that the term "SCHOOL DAYS" be requred on all of the option messages for the bottom plaque, except when the term "WHEN FLASHING" is used
	9/26/06			Response to a letter involving Experimentation Number 2-595, "New Symbol for Traffic Signal Photo Enhancement"
	9/20/06			Response to an e-mail that recommends changes to the MUTCD proposed by the National Committee on Uniform Traffic Control Devices
	9/5/06			Response to a letter regarding exit speed signs as discussed in section 2C.36 of the MUTCD.

August 2006
	Date			Item
	8/30/06			Request to experiment with the installation of Shared Roadway Bicycle Markings in Alexandria, Va.
	8/24/06			Letter requesting approval to use the flashing yellow arrow display for permissive left turns under the jurisdiction of Wayne County, Mich.
	8/24/06			Response to a letter requesting approval to expand the scope and number of locations of of an approved experiment with fishhook-shaped arrows on lane-use control signs and pavement markings for roundabout approaches in New York State
	8/24/06			Request for approval to use retroreflective yellow borders on traffic signal back plates on a state wide basis in New York
	8/24/06			Response to a letter that suggested a wording change for the regulatory "Reduced Speed Ahead" sign
	8/23/06			Response to Senator Arlen Specter (R.-Pa.) regarding the use of the RV Friendly Symbol on specific service signs
	8/23/06			Request for permission to experiment with flashing red in-roadway lights along the stop line of the stop-sign controlled approach to an Oregon intersection
	8/23/06			Request for official interpretation regarding strobe type lights for flashing beacons
	8/22/06			Request fo experiment with the RV Friendly Symbol in Tenn.
	8/22/06			Request for formal approval for the W.Va.-DOT to participate in the use of Clearview fonts
	8/21/06			Letter expressing support of the FHWA's Interim Approval to allow states to use the RV Friendly Symbol on specific service signs in Pennsylvania
	8/21/06			Request (from Ala.-DOT) to experiment with the RV Friendly Symbol Sign
	8/16/06			Request for approval to use Automated Flagger Assistance Devices on appropriate county roads within Anne Arundel County, Md.
	8/16/06			Request for approval to use Automated Flagger Assistance Devices in all divisions and bureaus of Ala.-DOT
	8/15/06			Request to approve the use of flashing yellow arrow display for permissive left turns on highways under the jurisdiction of Santee, Calif.
	8/10/06			Request to approve an experiment with advance sign concepts for Open Road Tolling plazas on the Illinois State Toll Highway System

July 2006
	Date			Item
	7/19/06			Response to a request for interpretation of Part 3 of the MUTCD regarding the use of pavement marking systems that consist of clumps or droplets of material with spaces of bare pavement between the material droplets.
	7/14/06			Response to a Virginia resident concerned with interstate highway signs that direct travelers to restaurants and gas stations.
	7/13/06			Response to a semiannual progress report on an approved experiment with a part-time traffic control signal at the entrance to Maryland Route 45 in Baltimore, Md.
	7/12/06			Request to approve the flashing yellow arrow display for permissive left turns at 22 locations in Oakland County, Mich.
	7/12/06			Request to approve retroreflective yellow borders on traffic signal backplates on a statewide basis in Virginia
	7/11/06			Request to approve an experiment with fishhook-shaped arrows on lane-use control signs and pavement markings for roundabout approaches in St. Crois County, Wisc.
	7/11/06			Request to approve an experiment with flashing yellow arrow displays for protected=permissive left-turn movements at an intersection in Multnomah County, Ore.

June 2006
	Date			Item
	6/29/06			Request to approve the use of Automated Flagger Assistance Devices in all jurisdictions in the state of Louisiana
	6/23/06			Response to a request for approval to use the flashing yellow arrow display for permissive left turns on a blanket basis statewide on highways
	6/23/06			Response to a recommendation to change various sections of Chapter 4C of the MUTCD
	6/23/06			Response to a request for approval to use the flashing yellow arrow display for permissive left turns on a blanket basis statewide on highways in Michigan
	6/23/06			FHWA memorandum titled, "Information:  Evaluation of Traffic Calming Treatments (Iowa)"
	6/23/06			Response to a request to experiment with wayfinding guide signs in the city of Miami Beach, Fla.
	6/23/06			Response to a request to experiment with a new sign indicating automated enforcement of traffic signal violations
	6/23/06			Response to a letter requesting approval to experiment with transverse speed reduction pavement markings
	6/23/06			Response to a letter recommending changes and additions to Chapters 3F, 3C, 6F and 8B of the MUTCD
	6/19/06			Letter requesting expansion of a previously approved experiment with flashing yellow arrow displays for protected-permissive left-turn movements in Snohomish County, Wash.
	6/14/06			Request for permission to experiment with the RV Friendly Symbol
	6/13/06			Request for approval of wayfinding guide signs in support of the nationally designated Connecticut River Scenic Byway
	6/8/06			Response to a request for permission to experiment with the RV Friendly Symbol on Tourist Oriented Directional Sings (Idaho)
	6/8/06			Response to a letter requesting permission to experiment with the RV friendly Sumbol Sign (Illinois)
	6/7/06			Response to an inquiry to Sen. Harry Reid (D.-Nev.) regarding speed limits and the MUTCD
	6/6/06			Request to approve the use of the flashing yellow arrow display for permissive left turns on a blanket basis in Oregon.
	6/6/06			Request to use the flashing yellow arrow display for permissive left turns on a blanket statewide basis on Missouri highways
	6/6/06			Request to approve an experiment with special "dot" markings and accompanying signs to encourage safe vehicle following distances at a location in Fort Lewis, Wash.
	6/6/06			Request to approve the use of the flashing yellow arrow display for permissive left turns on a blanket citywide basis in Fort Smith, Ariz.
	6/6/06			Request for approval to use the flashing yellow arrow display for permissive left turns on a blanket basis statewide on highways in North Carolina

May 2006
	Date			Item
	5/19/06			Response to the U.S. House of Representatives on behalf of a constituent regarding concerns for the illumination of overhead guide signs.
	5/19/06			Response to a letter requesting permission to experiment with High Intensity Activated Crosswalk Pedestrian Crossing Beacons at two location sin the city of Tempe, Ariz.
	5/19/06			Request to experiment with flashing yellow arrows for a right turn movement in Everette, Wash.
	5/19/06			Response to a letter requesting approval to use Automated Flagger Assistance Devices on all county roads within Pennington County, S.D.
	5/19/06			Request  to approve the use of the flashing yellow arrow display for permissive left turns on a blanket basis in the city of Bellevue, Wash.
	5/10/06			Memorandum regarding an Iowa State University demonstration project titled "Demonstration and Evaluation of Speed Management on Main Roads in Rural Communities."
	5/10/06			Request for approval to use the flashing yellow arrow display for permissive left turns on a blanket basis statewide in Washington State
	5/9/06			Request for approval to use Automated Flagger Assistance Devices in all jurisdictions in the State of California
	5/3/06			Response to a letter regarding South Carolina's premlimanary experience to date with retroreflective borders on traffic signal backplates
	5/3/06			Response to a request to approve the use of the flashing yellow arrow display for permissive left-turn movements at six locations in Yakima County, Wash.
	5/3/06			Request to approve the flashing yellow arrow display for permissive left-turns in Gresham, Ore.
	5/3/06			Request to approve an experiment with the flashing yellow arrow display in Coeur d'Alene, Idaho

April 2006
	Date			Item
	4/27/06			Todd Russell Platts (R.-Pa.) letter to FHWA Deputy Administrator J. Richard Capka regarding an issue related to the lighting of overhead signs.
	4/13/06			Request for approval to use the flashing yellow arrow display for permissive left turns citywide in the city of Cheyenne, Wyo.
	4/13/06			Request for approval to use the flashing yellow arrow display for permissive left turns statewide on highways under the jurisdiction of the Wyo.-DOT
	4/12/06			Request to approve an experiment with the fishhook-shaped arrows on lane-use control signs and pavement markings for roundabout approaches at eight locations in Washington State
	4/12/06			Request for interpretation of various sections of the MUTCD regarding experiments for use of pavement markings
	4/11/06			Request for interpretation of various sections of the MUTCD regarding experiments for use of pavement markings
	4/7/06			Response to a letter regarding speed limits and enforcement practices in an Ohio municipality
	4/7/06			Response to a letter requesting approval of certain signs within the Connecticut River Scenic Byway and future Byway in Vermont obtaining similar Federal designation
	4/6/06			Response to a memorandum requesting permission to experiment wit the RV Friendly Symbol Sign
	4/4/06			Request to approve various patterns of transverse pavement markings to encourage speed reduction at two Virginia locations

March 2006
	Date			Item
	3/31/06			Response to a memorandum requesting permission to experiment wit the RV Friendly Symbol sign
	3/29/06			Follow-up to a letter requesting an experiment with Wayfinding Guide Signs
	3/29/06			Request to approve the use of Automated Flagger Assistance Devices on all state roadways under West Virginia jurisdiction
	3/29/06			Request to approve an experiment with special "DOT" markings
	3/29/06			Request to approve an experiment with special peripheral transverse pavement markings to encourage speed reduction
	3/29/06			Response to the NCUTCD requesting a variety of changes to the MUTCD

February 2006
	Date			Item
	2/28/06			Request for help in finding an agency or organization interested in experimenting with an invention of a device that modifies the yellow traffic signal to add a countdown display of the number of seconds remaining in the yellow signal change interval
	2/28/06			Request to experiment with a flashing warning beacon having a rectangular shape, a nonstandard flash rate, and a nonstandard position relative to signs it supplements at two pedestrian crosswalk locations in St. Petersburg, Fla.
	2/23/06			Request to experiment with the flashing yellow arrow display for protected-permissive left-turn (PPLT) movements at six intersections in Nampa, Idaho
	2/22/06			Request to experiment with the RV Friendly Symbol in Jackson, Miss.
	2/22/06			Request to experiment with the RV Friendly Symbol in Ames, Iowa
	2/21/06			Request to experiment with wayfinding guide signs in Helena, Mont.
	2/21/06			Response to a request regarding an approved experiment with the flashing yellow arrow display for protected-permissive left-turn (PPLT) movements at intersections in Cheyenne, Wyo.
	2/15/06			Response to a resolution regarding signs that direct persons to the Department of Veterans Affairs Regional Office in Huntington, W.Va.
	2/15/06			Response to two experiment requests in Florida - the first being a request to experiment with nine business logos instead of the maximum number of six on Specific Service Signs, the second experiment being a request to evaluate the effectiveness and motorist understanding of a new symbol for colleges and universities
	2/10/06			Request for reconsideration to experiment with purple signs on toll facilities in Texas
	2/10/06			Request for approval for the Maryland State Highway Administration to participate in the use of Clearview fonts
	2/10/06			Letter with comments regarding the RV Friendly Symbol Interim Approval
	2/8/06			Request for permission to experiment with High Intensity Activated Crosswalk ("HAWK") Pedestrian Beacons at 51 locations in Tucsan, Ariz.
	2/7/06			Request  for permission to experiment with the flashing yellow arrow display for a protected-permissive left-turn (PPLT) movement at an additional intersection in Lacey, Wash.
	2/3/06			Request for permission to experiment with the flashing yellow arrow display for protected-permissive left-turn movements at four intersections in Everett, Wash.
	2/3/06			Request for official interpretation of the term "integral" as used in Section 4E.04 of the MUTCD
	2/3/06			Request for permisson to expand previously approved experiment with flashing yellow arrow protected-permissive left-turn movements in North Caroliina
	2/3/06			Request for approval to experiment with a simplified bicycle wayfinding signage system for bike routes in Evanston, Ill.
	2/3/06			Request for approval to use Automated Flagger Assistance Devices (AFADs) in all jurisdictions in New Jersey
	2/3/06			Request for permission to experiment with the flashing yellow arrow display for two protected-permissive left-turn (PPLT) movements in Albany, Ore.

January 2006
	Date			Item
	1/17/06			Response to a letter regarding a ptented invention of a device that modifies the yellow traffic signal to add a countdown display of the number of seconds remaining in the yuellow signal change interval
	1/17/06			Response to a leter requesting permission to experiment with the flashing yellow arrow display for four protected-permissive left-turn movements at two Oregon intersections
	1/17/06			Request for further clarification of the applicability of the Institute of Highway Engineers Vehicle Traffic Control Signal Heads specifications to signal sections used as flashing beacons
	1/17/06			Response to a letter regarding reservations with the placement and design requirements of the RV Friendly Symbol outlined in the FHWA Interim Approval dated Sept. 6, 2005