1642 ARTICLE 43.

provide for the examination of applicants for journeyman plumbers' certifi-
cates or permits, and for the issuing of certificates or permits to journeyman
plumbers after passing such examination as said commissioners may deem
proper, said commissioners designating them either " certificates " or " per-
mits," as they may deem proper, and they may provide for the issuing of
permits to apprentices, so that, however, said journeyman plumbers and said
apprentices shall be authorized to work only under the direction and con-
trol of a duly certified master plumber; and that said certificate or permits
shall be so framed as to show that said journeyman plumbers and said ap-
prentices are authorized to work only as above provided. Said board may
demand and receive from each journeyman plumber the sum of two dollars
at the time of issuing of the first certificate to said journeyman plumber,
and the sum of one dollar for the renewal thereof each and every year
thereafter, on or before the first day of May; and said board, at any time,
may require, on any application for renewal, any applicant to pass another
examination before issuing any renewal, or may issue any renewal without
requiring any other examination, as said board in each case, from year to
year, may deem proper; but no charge shall be made for the issuing of
permits or renewals of permits to apprentices. Said commissioners may fix
the requirements of the competency and qualification of applicants, whether
of master plumbers or of journeyman plumbers, as different standards, in
their judgment, for different parts of the State, and may accordingly limit
the certificates so as to permit the holder thereof to do plumbing work
only in certain specified sections of the State, as said commissioners may
determine. Whenever by any of the general or local laws of this State it
is or shall be provided that a permit shall be granted to anyone qualified to
work at the plumbing business or to do plumbing work, however the same
may be designated, or that certain appointments shall be given to or certain
duties shall be performed by one qualified to do plumbing work, or any
other reference is made to one qualified to do work which shall be included
under the term " plumbing work," however the same shall be designated,
then such general or local laws shall be held to refer only to one qualified
to work at the plumbing business under his own direction; that is, one
holding a certificate authorized to be called a " master plumber's certifi-
cate," and shall not be held to refer to a journeyman plumber or to an
apprentice. Said commissioners may revoke any certificate or permit which,
after notice to the holder and hearing they may determine has been obtained
by fraud or misrepresentation, or has been issued by mistake or inadver-
tence, and said commissioners may revoke or suspend for such time as they
may deem proper the operation of any certificate or permit when the said
commissioners, after notice to the holder and a hearing, shall determine
that the holder thereof has used such certificate or permit contrary to the
provisions of this sub-title, or to any rules or regulations of said commis-
sioners adopted in pursuance of the provisions of this sub-title, or contrary
to the limitations contained in said certificates or permit, or has violated
any of the provisions of this sub-title. Nothing in this sub-title shall be
construed to prevent incorporated gas companies from making connections
of gas appliances for domestic purposes.