3.— In this Part—

“class A fine” means a fine not exceeding €5,000;

“class B fine” means a fine not exceeding €4,000;

“class C fine” means a fine not exceeding €2,500;

“class D fine” means a fine not exceeding €1,000;

“class E fine” means a fine not exceeding €500;

“commencement date” means the date of the coming into operation of this Part;

“enactment” means—

(a) an Act of the Oireachtas,

(b) a statute that was in force in Saorstát Éireann immediately before the date of the coming into operation of the Constitution and that continues in force by virtue of Article 50 of the Constitution, or

(c) an instrument made under—

(i) an Act of the Oireachtas, or

(ii) such a statute.