1518 LAWS OF MARYLAND. [CH. 718

sion has been revoked shall be entitled to be present in person
and by counsel on the hearing of the appeal. If a certificate
or commission is lost or destroyed a new certificate or commis-
sion shall be issued in its place without another examination.
A person who has failed to pass the examination for a com-
mission or whose commission has been revoked except for un-
trustworthmess shall be entitled to apply for a new examina-
tion and commission after ninety days from such failure or
revocation.

139. On and after June 1, 1939, each boiler used or proposed
to be used within this State, except boilers exempt under Sec-
tion 135, shall be inspected annually internally and externally
while not under pressure by the Chief Inspector or by one of the
deputy inspectors or special inspectors provided for herein as to
its construction, installation, condition and operation. If at any
time a hydrostatic test shall be deemed necessary to determine
the safety of a boiler, same shall be made, at the direction of
the inspector, by the owner or user thereof. Not more than
fourteen months shall elapse between internal inspections, and
external inspections while under pressure shall also be made
at no greater intervals.

If a boiler shall upon inspection be found to be suitable, and
to conform to the rules and regulations of the Board of Boiler
Rules, the owner or user thereof, shall pay to the Chief Inspec-
tor and to be collected by him the sum of one ($1. 00) dollar
and the Chief Inspector shall issue to such owner or user an
inspection certificate specifying the maximum pressure which
the boiler may be allowed to carry. Such inspection certificate
shall be valid for not more than fourteen months from its date
and it shall be posted under glass in the room containing
such boiler or In the case of a portable boiler, in a metal case
to be kept in the tool box accompanying the boiler. No inspec-
tion certificate issued for a boiler inspected by a special in-
spector shall be valid after the boiler for which it was issued
shall cease to be insured by a duly authorized insurance com-
pany. The Chief Inspector or any deputy inspector may at any
time suspend an inspection certificate when, in his opinion,
the boiler for which it was issued may not continue to be
operated without menace to the public safety or when the
boiler is found not to comply with the rules herein provided
for, and a special inspector shall have corresponding powers
with respect to inspection certificates for boilers insured by
the company employing him. Such suspension of an inspection
certificate shall continue in effect until such boiler shall have
been made to conform to the rules and regulations of the
Board of Boiler Rules and until said inspection certificate shall
have been reinstated.