Originally called 'Model Form A', 'MF/1' comprises Conditions of Contract for the design, supply and installation of electrical, electronic and mechanical plant. First published by the Institution of Electrical Engineers (IEE), the Institution of Mechanical Engineers (IMechE) later joined the IEE as publisher, widening the scope to cover mechanical works. The 1988 edition was renamed and combined with the export version—MF/1. This Practice Note looks at the 2024 Revision 7 version of the form (now published on behalf of the Institution of Engineering and Technology (IET) and the IMechE). Other contracts in the Model Form suite include conditions for supply only (MF/2 and MF/3) and for professional services (MF/4). See Practice Notes: MF/2 Rev 2 (1999), MF/3 Rev 1 (2001) and MF/4 (2003). MF/1 is prepared for projects with a large element of mechanical, electrical and electronic plant—it has been used on projects ranging from electricity generation, waste incineration, and fire safety equipment to automated manufacturing systems. Although not a part of MF/1, it would be common for the Contractor to also enter into a maintenance agreement