SACAQMD RULE 457 METHANOL COMPATIBLE TANKS          
LAST REVISED 09/10/91          

          SACRAMENTO METROPOLITAN AQMD                RULES AND REGULATIONS
                                RULE 457 METHANOL COMPATIBLE TANKS
                                         Adopted 9-10-91

                                              INDEX

          100 GENERAL
              101  PURPOSE
              110  EXEMPTION CAPACITY
              111  EXEMPTION IMPLEMENTS OF HUSBANDRY
              112  EXEMPTION COMPRESSED NATURAL GAS

          200 DEFINITIONS
              201  FLEET
              202  METHANOL
              203  METHANOL FUEL
              204  MOTOR VEHICLE
              205  NEW MOTOR VEHICLE FUEL STORAGE TANK
              206  UNDERGROUND FUEL STORAGE TANK
              207  UNDERGROUND PIPE
              208  VEHICLE

          300 STANDARDS
              301  METHANOL COMPATIBLE TANK AND PIPING REQUIRED

          400 ADMINISTRATIVE REQUIREMENTS (NOT APPLICABLE)

          500 MONITORING AND RECORDS
              501  TESTING PROCEDURE
          
          100 GENERAL

              101  PURPOSE:  To  require  at  least  one motor vehicle fuel
                   storage tank to be compatible with  methanol  fuels when
                   one  or  more  underground  motor  vehicle  fuel storage
                   tank(s) are installed or replaced at a fueling facility.

              110  EXEMPTION  CAPACITY:  The provisions of this rule  shall
                   not apply to  new  motor  vehicle  fuel storage tanks of
                   capacity less than five thousand (5,000) gallons, except
                   such tanks servicing a fleet.

              111  EXEMPTION  IMPLEMENTS  OF HUSBANDRY: The  provisions  of
                   this  rule  shall not apply  to  motor  vehicle  fueling
                   facilities located  on  farmland  and used primarily for
                   fueling  of  implements  of  husbandry   as  defined  in
                   Division  16,  Section  36000 of the California  Vehicle
                   Code.

              112  EXEMPTION COMPRESSED NATURAL GAS: The provisions of this
                   rule shall not apply to motor vehicle fueling facilities
                   that   install   compressed   natural   gas   dispensing
                   equipment.   Any  motor  vehicle fueling  facility  that
                   chooses  to  install a non methanol  compatible  vehicle
                   fuel tank due  to the installation of compressed natural
                   gas equipment, must  replace the non methanol compatible
                   vehicle fuel tank with  a  methanol  compatible  vehicle
                   fuel  tank  if  the  compressed  natural  gas dispensing
                   equipment is subsequently removed.

          200 DEFINITIONS

              201  FLEET:  Any  group  of  15 or more motor vehicles  under
                   common  ownership  or  operation   which  are  used  for
                   governmental, public or commercial purposes.

              202  METHANOL: An alcohol with chemical formula CH3OH.

              203  METHANOL FUEL: A fuel containing at  least  85% methanol
                   by volume, used in motor vehicles or internal combustion
                   engines.

              204  MOTOR  VEHICLE: Any vehicle which is self-propelled  and
                   drawn on land.

              205  NEW MOTOR  VEHICLE  FUEL STORAGE TANK: Any manufactured,
                   repaired, refurbished,  or  used  fuel storage tank that
                   contains a fuel intended to be used in motor vehicles or
                   internal  combustion  engines  for  which  Authority  to
                   Construct  is applied for in accordance  with  Rule  201
                   after September 10, 1991.

              206  UNDERGROUND   FUEL  STORAGE  TANK:  One  or  more  tanks
                   combined with underground  pipes,  which is used for the
                   storage of motor vehicle fuel, and which at least 10% of
                   the surface area of the tank is beneath  the  surface of
                   the ground.

              207  UNDERGROUND PIPE: Any tube, conduit, pipeline, or system
                   used  in  connection  with  a motor vehicle fuel storage
                   tank,  but  not  intended  to  transport  such  fuel  in
                   interstate or intrastate commerce.

          300 STANDARDS

              301  METHANOL COMPATIBLE TANK AND PIPING  REQUIRED:  A person
                   shall not install, or allow the installation  of, one or
                   more new motor vehicle fuel storage tank(s) unless:
                   301.1   At  least  one  such  tank  at  any single motor
                           vehicle  fueling  facility,  and all  associated
                           pipes   are   capable  of  safely  storing   and
                           transporting methanol fuel, and;
                   301.2   Written  certification  of  motor  vehicle  fuel
                           storage  tank   and  piping  compatibility  with
                           methanol  fuel  has   been   obtained  from  the
                           manufacturer   prior   to   tank   and    piping
                           installation.

          400 ADMINISTRATIVE REQUIREMENTS (NOT APPLICABLE)

          500 MONITORING AND RECORDS

              501  TESTING   PROCEDURE:    In   addition  to  test  methods
                   specified below, equivalent test  methods  may  be used.
                   Such equivalent test methods must be approved by the Air
                   Pollution  Control  Officer  prior  to  use.  If used to
                   determine compliance, such equivalent test methods  must
                   provide  the  same  results  as  the  test  method it is
                   intended to replace.
                   501.1   TANKS:  New  motor vehicle fuel storage  tank(s)
                           shall   meet   Underwriters    Laboratory   (UL)
                           Standards 58, 1316, 1746 or 142 as applicable to
                           the tank being tested.
                   501.2   PIPING:    Underground    pipes    shall    meet
                           Underwriters Laboratory (UL) Standards 58, 1316,
                           1746  or  142  as  applicable to the pipe  being
                           tested.