Technical directives (TDs) are publications used for directing the action and recording of modifications, re-positioning, operational improvement or an alteration in the characteristics of the equipment to which it applies.
TD changes are typically implemented outside of regular procedural review intervals within the industry in question and act as an update to them as a function of data collected during operation.
Motorsport sanctioning bodies reserve the right to implement TDs when they deem it appropriate to do so on reasonable grounds, such as safety. However, because the foundations around which a