Section 2(1) of the Principal Act is amended as follows:

(a) by omitting "blood" from the definition of breath analysing instrument and substituting "breath" ;

(b) by omitting "blood" from the definition of breath analysis and substituting "breath" ;

(c) by inserting "breath or" after "a person's" in the definition of breath test ;

(d) by omitting the definition of prescribed concentration and substituting the following definition:

prescribed concentration means a concentration of 0·05 of a gram of alcohol in 210 litres of breath or a concentration of 0·05 of a gram of alcohol in 100 millilitres of blood;