Sch 4 para 2.2
Intermediate statement of verification (ISV) (2.2.1) Principles At the request of the project entity, the verifications may be done for parts of a subsystem or may be limited to certain stages of the UK verification assessment procedure. In these cases, the results of UK verification may be documented in an “intermediate statement of verification” (ISV) issued by the approved body chosen by the project entity. The ISV must provide reference to the NTSNs with which the conformity has been assessed. (2.2.2) Parts of the subsystem The project entity may apply for an ISV for any part into which they decide to split the subsystem. Each part shall be checked at each stage as set out in point 2.2.3. (2.2.3) Stages of the UK verification procedure The subsystem, or certain parts of the subsystem, shall be checked at each of the following stages— (a) overall design, (b) production: construction, including, in particular, civil-engineering activities, manufacturing, constituent assembly and overall adjustment, (c) final testing. The project entity may apply for an ISV for the design stage (including type tests) and for the production stage for the whole subsystem or for any part into which the project entity decided to split it (see point 2.2.2).