Section 43L of the Principal Act is amended as follows:

(a) by omitting subsection (1) and substituting the following subsection:

(1)  A traffic infringement notice may be served –

(a) by fixing it to the vehicle or other thing in respect of which the offence occurred; or

(b) by personal delivery; or

(c) by post.

(b) by inserting the following subsection after subsection (1AA) :

(1AAB)  A traffic infringement notice to which subsection (1AA) applies is taken to have been effectively served on a person by post within a 21 day period if the notice is actually posted to the person before the period expires.