(bb) generally, the effective control of the emission or emanation of smoke from any premises; (cc) the measures to be adopted to prevent the creation or continuation of a nuisance originating from dust or to minimise such nuisance; (dd) regulating, restricting and prohibiting the depositing of matter of such a nature or quantity as to cause or to be likely to cause a nuisance originating from dust; (ee) restricting, regulating and prohibiting the carrying on of any activity which causes or is likely to cause a nuisance originating from dust. (ff) classifying internal combustion engines for the purposes of any regulations and exempting any class or type of internal combustion engine from the regulations; (gg) requiring internal combustion engines or any class or type thereof to have installed or incorporated therein or thereon one or more systems or devices specified in the regulations to prevent or lessen the emission into the atmosphere of any air contaminants; (hh) providing for the testing and inspection of any system or device referred to in paragraph (gg); (ii) providing for the issue by such person or authorities as may be specified in the regulations of certificates of approval of systems or devices referred to in paragraph (gg); (jj) defining and designating new motor vehicle internal combustion engines for the purposes of any regulations; (kk) regulating, restricting or prohibiting the type and quantity of fuel that may be used in connection with internal combustion engines, and for heating, generating steam or electricity or any industrial process; (ll) generally restricting, regulating or controlling the emission into the atmosphere of any air contaminants from motor vehicle internal combustion engines. (3) The Minister shall not make regulations for the matter referred to in paragraph (q) of subsection (2) except with the approval of the Minister responsible for finance. (4) Regulations in terms of subsection (1) may provide for penalties for the breach of their provisions: Provided that no penalty shall exceed a fine of level fourteen or imprisonment for a period of twelve months or both such fine and such imprisonment. 141Amendment of First Schedule (1) The Minister may, by statutory instrument, amend the First Schedule by adding any item to it, deleting any item from it or altering any item in it. (2) In the exercise of his powers under subsection (1), the Minister may define any activity as a project by reference to its magnitude. 142Amendment of Acts (1) The Act specified in each Part of the Sixth Schedule is amended to the extent set out in that Part. 64