Traffic Engineering –Traffic Asset Program

Traffic Control Devices (TCD) Pre-Approval Program

The Virginia Department of Transportation (VDOT) has established a Traffic Control Device (TCD) Pre-Approval Program to evaluate and pre-approve traffic control devices against VDOT standards and specifications.   

The program includes both the Traffic Control Device Pre-Approved List (TCDPAL) and the Traffic Control Device Rescinded Product List (TCDRPL).

These lists will be routinely revised and should be reviewed regularly for updates and additions.

TCD Pre-Approved Listing

The TCDPAL is a list of traffic control devices pre-approved as compliant with current road and bridge specifications, standards and other minimum requirements for use on Virginia streets and highways.

Products on the TCDPAL do not require project-specific review and approval, unless project-specific special provisions, copied notes or plan notes have modified VDOT’s general specifications and / or standards for the product.

Products not listed on the TCDPAL may still be used on VDOT projects. However project-specific review of catalog cut sheets is required.

The TCDPAL serves as a shortcut to this process.

TCD Rescinded Product Listing

Pre-approved traffic control devices may be rescinded from the TCDPAL and placed on the TCDRPL. 

Rescinded traffic control devices are typically those that are obsolete, discontinued or no longer in conformance with VDOT specifications.

Products on the TCDRPL may still be used on VDOT projects. However, they may only be used with project-specific review of catalog cut sheets, submitted in accordance with VDOT road and bridge specifications.

Product application – The process begins with email submission of a completed product application to

Product evaluation – Upon receipt of the application, VDOT staff will evaluate the product against pre-defined approval criteria. 

Evaluation timelines, results and approval decisions will be communicated to the applicant and VDOT staff will address any questions or concerns.

Product monitoring – If approved, the applicant, the product vendor and / or the product manufacturer are expected to proactively notify VDOT of any significant product specification changes. 

Failure to do so may result in the product’s removal from the TCDPAL.

At a minimum, VDOT requires resubmission of catalogue cut on a five-year cycle in order to maintain approved status. 

VDOT also reserves the right to re-evaluate any or all products as it may deem necessary.

Related forms and documentation 

Other VDOT-approved product lists

Signal Pole- Mast Arm Combination Shop Drawings

All VDOT pre-approved Signal Pole- Mast Arm combinations are listed on the TCD Pre-Approval Listing. For shop drawings of the signal poles, see below. For VDOT staff looking for signal pole-mast arm calculations, use this InsideVDOT page: Pre-Approved Signal Pole Calculations

Traffic Engineering Division traffic control devices contact

Marc Lipschultz, P.E., PTOE
Deputy Program Manager - Traffic Control Devices Engineering Mgm
Traffic Engineering Division


Virginia Department of Transportation
Traffic Engineering Division, Annex Building, 2nd floor
1401 E. Broad St., Richmond Virginia, 23219

Special Announcements

Until new guidelines are developed, VDOT will not pre-approve the following product categories:

  • Conflict monitors, controller cabinets, detector amplifiers, flasher cabinets, flashers, load switches, photoelectric controls, traffic signal controllers and pedestrian push buttons    

VDOT-FHWA Agreement Related to Traffic Asset Program

Page last modified: March 27, 2023