Accordingly in each of those sections for subsection (1)(a) there shall be substituted the paragraph—

“(a)

so long as he is under the age of thirteen years”;

and in subsection (2) (which allows the general rules in subsection (1) to be modified by local authority bye-laws) for paragraph (a)(i) there shall be substituted the sub-paragraph—

“(i)

the employment of children under the age of thirteen years (notwithstanding anything in paragraph (a) of the last foregoing subsection) by their parents or guardians in light agricultural or horticultural work”.