Thread: where can i find a engineer to give e cat certificate?

6mm Steel is not really mentioned
Section 28 subsection C refers to
28 Security precautions in relation to pistols, military style semi-automatic firearms, and restricted weapons

(1) Every person who is lawfully entitled to possession of a pistol, military style semi-automatic firearm, or restricted weapon other than an air pistol by virtue of a permit under section 18 of the Act or a firearms licence endorsed under section 30 or section 30B of the Act shall ensure that, except when the pistol, military style semi-automatic firearm, or restricted weapon is in his or her immediate physical possession or is being used, in accordance with section 31 of the Act, for the purpose of making a broadcast or producing or staging a play or filming a cinematic production or television film or is in the custody of a licensed dealer or a member of the Police, it is—
locked in a steel safe or steel box or steel cabinet (being in every case a safe, box, or cabinet of sound construction and of a type approved in writing either generally or in the particular case by a member of the Police) bolted or otherwise securely fixed (in a manner approved in writing either generally or in the particular case by a member of the Police) to the building within which the pistol or military style semi-automatic firearm or restricted weapon is kept..

The highlighted bit is the reason why the difference between A and E is important.