Paragraph 3
An activity shall not be taken to be an activity falling within sections 1.1 to 7 of Part 1 if it is—
carried out in a working museum to demonstrate an industrial activity of historic interest or if it is carried out for educational purposes in a school as defined by Article 2(1) of the Education and Libraries (Northern Ireland) Order 1986f1;
carried out at an installation or mobile plant solely used for research, development and testing of new products and processes;
the running on or within an aircraft, hovercraft, mechanically propelled road vehicle, railway locomotive or ship or other vessel of an engine which propels or provides electricity for it;
the running of an engine in order to test it before it is installed or in the course of its development; or
carried out as a domestic activity in connection with a private dwelling.