Mar. 27.] THE NEW ZEALAND GAZETTE. 863

material from which the dangerous goods cannot escape in
the form either of liquid or of vapour, and so substantially
constructed as not to be liable, except under circumstances of
negligence or extraordinary accident, to be broken or to become
defective or insecure in course of conveyance ; and unless such
container and the outer package containing the same (if any)
is of a type and constructed to a specification of which the
Chief Inspector has given his approval by notice published
in the Gazette.

Provisions relating to the Conveyance of Petroleum Spirit in
Tank-wagons.

9. No person shall use a road tank-wagon for the con-
   veyance of dangerous goods of Class I other than a tank-wagon
   which is constructed in accordance with the provisions con-
   tained in the Fourth Schedule to these regulations, and which,
   together with its connections and fittings, is maintained in
   good condition and in accordance with the provisions afore-
   said.

10. (a) No person shall use for the conveyance of dangerous
    goods of Class I a road tank-wagon where capacity exceeds
    2,500 gallons.

(b) No person shall use for the conveyance of dangerous
goods of Class I a road tank-wagon where capacity exceeds
1,500 gallons unless the wagon is a six-wheeled motor-lorry
as defined in Section 2 of the Public Works Amendment Act,
1925.

(c) No person shall use for the conveyance of dangerous
goods of Class I a road tank-wagon having a trailer attached
thereto or used in connection therewith except a tank-trailer
used subject to the following conditions :—

(i) Only four-wheeled tank trailers shall be employed and
not more than one such trailer shall be attached.

(ii) The capacity of the tank trailer shall not exceed 900
gallons.

(iii) Except as may be approved by the Chief Inspector, the
tank-wagon and trailer while in use shall be con-
stantly attended by not less than two competent
persons, one of whom shall remain with the trailer
if the latter is detached from the tank-wagon.

(d) Nothing herein contained shall exempt any person from
compliance with the provisions of the Public Works Act,
1908, and its amendments, and any regulations thereunder
for the time being in force relating to any class of vehicle and
the use thereof.

(e) The foregoing limitations on the capacity of tank-
wagons and tank-trailers shall be construed so as to permit
of the tank containing the amount specified under varying
degrees of temperature. No person shall fill or permit to
be filled any tank or compartment of a tank, which is not
provided with a pressure-relief valve, in excess of 95 per cent.
of its capacity.

11. No person shall light, bring, or cause or permit to be
    lit or brought on any tank-wagon any fire or artificial light
    capable of igniting inflammable vapour, whether the tank is
    full or empty.

12. No person shall use for the conveyance of dangerous
    goods of Class I any road tank-wagon unless a 2-gallon fire-ex-
    tinguisher of the foamite type and a 1-quart fire-extinguisher
    of the tetra-chloride type, each kept full and in good working
    order, be carried in an easily accessible position thereon.

13. No person shall smoke while on or attending to any
    tank-wagon wherever situated, and whether full or empty,
    and no person other than the person in charge, an Inspector,
    or an authorized employee of the owner shall ride on any
    tank-wagon, and the person in charge of any tank-wagon
    shall not permit any person to smoke while on or attending
    to such tank-wagon, or permit any person other than as
    aforesaid to ride on such tank-wagon.

14. Except as may be approved by an Inspector for the
    purposes of tank calibration, no person shall deliver petroleum
    spirit from any tank-wagon except under seal—i.e., by stout
    hose having a liquid-tight and gas-tight connection to the
    container into which the delivery is made. Except when
    delivery is made on farm premises exceeding 10 acres in
    area, provision shall be made to discharge the vapour from
    such containers not less than 12 ft. above the ground and
    well clear of any fire or flame.

15. The person in charge of any tank-wagon shall, before
    commencing delivery, take all due precautions to ensure that
    the connections are liquid-tight and that the quick-release
    valves are in working order. Delivery shall be made only by
    personal operation of the quick-release valve on the delivery
    pipe-line, and it shall be an offence against these regulations
    for any person to fasten or secure the lever or operating-
    handle of any such quick-release valve with the valve in the
    “ open ” position.

16. The person in charge of any tank-wagon shall, during
    the filling or emptying thereof, or of any tank-trailer attached
    thereto or used in connection therewith, observe the following
    precautions :—

(i) If the wagon is mechanically driven the engine shall be
stopped the whole time the filling or emptying is
proceeding, and shall not be run until all tanks have
been securely closed.

(ii) If the wagon is horse-drawn, the horses shall be removed
and the wheels securely scotched before the filling
or emptying is begun.

(iii) Adequate provision shall be made to prevent the
accumulation of a dangerous static charge of
electricity.

(iv) The discharge line shall be kept under constant ob-
servation while the wagon is being emptied. If
any leaks occur the discharge shall be stopped
immediately, and no further discharge permitted
until the line is repaired.

(v) Before commencing delivery into any underground
tank or other container the dipping-hole pipe
of the underground tank or container shall be
securely closed gastight and shall be kept so closed
during delivery.

17. No person shall deliver petroleum spirit from any
    tank-wagon unless such tank-wagon is in the open air : Pro-
    vided that this regulation shall not prohibit delivery from a
    tank-wagon situated beneath a verandah or roof if such
    verandah or roof has not more than two sides enclosed and
    the approval in writing of the Chief Inspector to such delivery
    has been obtained.

Provisions of General Application.

18. Every person conveying dangerous goods of Classes I
    and II, and every person in the vicinity of such goods during
    conveyance or delivery, whether assisting in such conveyance
    or delivery or not, shall comply with the following general
    rules :—

(a) No fire and no artificial light capable of igniting inflam-
mable vapour shall be allowed on any vehicle con-
veying the dangerous goods, and no such fire or light
shall be brought within 30 ft. of such goods.

(b) No person shall smoke within 30 ft. of any wharf or
depot where the dangerous goods are being handled,
and no person shall smoke on any carriage holding
or conveying dangerous goods within a borough or
town district, or the limits of any harbour for which
a Harbour Board has been constituted.

(c) No explosive or other goods liable to cause or communi-
cate fire or explosion shall be conveyed on the same.
carriage as the dangerous goods.

(d) A competent person shall be in charge of every carriage
conveying the dangerous goods, and no intoxicated
person shall be allowed on any such carriage.

(e) No carriage conveying dangerous goods shall be allowed
to remain stationary within a borough or town dis-
trict, or the limits of any such harbour as aforesaid
except for such time and for such purpose as is
reasonably necessary in connection with the loading
or delivery of the goods conveyed, or at such place
and under such conditions as may be approved by
an Inspector.

(f) No person shall carry dangerous goods of Class I other
than such goods contained in the fuel-tanks of the
vehicle, on any public vehicle whilst conveying
passengers.

(g) No person shall convey dangerous goods in a mechan-
ically-propelled vehicle unless such vehicle be provided
with a fire-extinguisher of the tetra-chloride type
of capacity of not less than 1 quart, kept full and
in good working order, and placed in an easily
accessible position.

(h) All due precautions, whether herein prescribed or not,
shall be taken for the prevention of accidents by fire
or explosion and for preventing unauthorized persons
having access to the dangerous goods, and for the
prevention of any act whatever which tends to cause
fire or explosion and is not reasonably necessary for
the purposes of the conveyance of the dangerous
goods, or of any other article carried therewith, and
for preventing any person whomsoever from com-
mitting any such act ; and any person who, after
being warned, commits any such act shall be deemed
to commit a breach of these general rules.

19. Notwithstanding anything in this Part of these regula-
    tions, in cases where packages containing dangerous goods of
    Class I or of Class II have on importation into New Zealand
    or on subsequent conveyance, developed defects which will
    cause or permit dangerous goods to escape therefrom, either