Traffic Light System (TLS)

The Traffic Light System (TLS) is a colour coded system which provides guidance on prescribing responsibilities and commissioning intention for selected products.

It aims to provide clear understanding of where clinical and prescribing responsibility rests between specialists and primary care practitioners should a product be prescribed.

It operates alongside the local Doncaster and Bassetlaw formulary and a TLS for a product should not be taken as an indication of its inclusion in the formulary. Prescribers should consult the formulary and/or click the “read more” button on the ┬ábefore making a prescribing decision.

Note: The guidance on the Traffic Light System has been agreed with Doncaster & Bassetlaw clinicians, and therefore may not always mirror guidance produced outside of this local area. Criteria for the inclusion of medicines on these lists, or the moving of medicines between the TLS categories, will be primarily based on:

  • Evidence base
  • Clinical competence and experience
  • Patient safety
  • Monitoring and follow-up requirements of the drug and/or the condition

The TLS operates under the auspices of the Doncaster and Bassetlaw Area Prescribing Committee.

Each product is classified under one of the following categories:

Red, Amber, Amber with Guidance, Green, Green with Guidance or Grey.

The category it is placed in determines the circumstances in which it is recommended to be prescribed (or not) and any guidance/rationale which needs to be taken into consideration.

Review of the product and its classification takes place when new guidance/information is released on the product. Alternatively, a request for a new TLS or a revision of an existing TLS can be made via this form:

Request-for-review-or-consideration-of TLS status