The CTSI was formed from a merger of the Institute of Trading Standards Administration, created in 1956, and the Incorporated Society of Inspectors of Weights and Measures, established in 1881.

It aims to sustain and improve consumer protection, health and wellbeing, together with the reinforcement of fair markets, facilitating business competitiveness and success.

[9][10] 1 October 2015 the Alternative Dispute Resolution Directive came into force,[11] and the CTSI was appointed to carry out the approval functions on behalf of the Secretary of State.

[13] CTSI holds the Heroes Awards annually in the autumn, this provides an opportunity to recognise and celebrate those who have contributed to the profession and the protection of consumers.

The CTSI publishes a bi-annual magazine and website under the title Journal of Trading Standards,[14] produced on contract by Fourth Estate Creative.