FOAK (First of a Kind) describes a technology, asset or project being deployed for the first time at commercial scale, often contrasted with NOAK (Nth of a Kind). It is not generally defined in legislation or case law; it is a descriptive term used across procurement, construction, energy, transport and infrastructure, and is usually given a specific definition in the relevant contract or funding call.
In practice, a FOAK designation signals elevated technology and delivery risk, affecting risk allocation, pricing and bankability. Typical legal consequences include tailored performance guarantees and testing, stricter acceptance criteria, adjusted liquidated damages and liability caps, longer programmes and longstop dates, enhanced parent company support or bonds, and careful treatment of IP, warranties, spares and insurance availability. Funders and public authorities may require additional evidence, stage gates and milestone payments. In grants and public procurement, FOAK status can be an eligibility or evaluation criterion for innovation funding.
Parties should define the scope precisely (for example, first worldwide, first in the UK or Ireland, first at commercial scale, or first for the supplier). Usage and legal treatment are broadly consistent across England and Wales, Scotland, Northern Ireland and Ireland, but sector regulation may drive nuances (for example, nuclear, renewables...