Is it a local club issue or an amha issue?
If the show was an AMHA show it would be an AMHA issue.
The rule can be found in the 2008 Official Rule Book but note that this rule has a correction that is not in the printed version of the book but is on the "2008 Rulebook Correction" attachment.
On the AMHA web site ithe rule can be found on page 19 of:
http://www.amha.org/rulebook/Show-Rules.pdf
GR-050 PROTESTS
A. All protests shall be handled according to the following:
1. Any protest (excluding height protest) must be made in
writing to the show manager or the ring steward not
later than one hour after the completion of the last
class of the show. The protest shall be accompanied
by a $100.00 deposit, which shall be returned to the
protestor in the event the protest is sustained. If a
protest is not sustained the $100.00 protest fee shall
go to the profits of the show. (Amended 11-10-00, effective
01-02)
2. Protests shall be adjudicated by a protest committee of
three (3) show officials not involved in the dispute.
3. The Protest Committee shall promptly meet and adjudicate
the issue, make effective its decision upon the
parties in interest and report its determination to all
parties. A show Protest Committee may disqualify a
person and/or his/her entries for the duration of the
show.
4. The decision of the Protest Committee may be
appealed to the AMHA Show Rules Committee with an
additional $100.00 and all copies of paperwork sent to
the protestee by the protestor. A second appeal may
be made to the AMHA Board of Directors with an additional
$100.00 fee. The decision of the Board of
Directors is final.
5. No protest of approved show rules or Show Rules
Committee’s previous interpretations of any rule will be
allowed on show level.
B. Horses involved in a protest shall upon request:
1. Be presented within one hour of notification.
2. Remain in full view of at least one show official, or designated
person, until protest is finally resolved.
3. Horse may not be trimmed, medicated, ridden, exercised,
or otherwise altered prior to final resolution of
the protest. Any such alteration will result in the disqualification
of the animal for the remainder of the
competition with forfeiture of all prizes and entry fees
paid by the owner.
C. Protest concerning height:
1. The measurement of a horse may be protested at
any time prior to the end of the show so long as the
horse is present on the show grounds. The protest
must be made in writing accompanied by a $100
deposit. (Amended 12-07, effective 02-08)
2. The horse shall be remeasured by a show official other
than the show official that measured all animals at the
show, and in the presence of the original measurer and
at least two (2) other show officials.
3. If there is no discrepancy in measurements from the first
measurement to the measurement after protest, the
original measurement stands as official.
4. If there is a discrepancy in measurements from the first
measurement to the protest measurement, the protester
has the option of accepting the protest measurement,
or having the show veterinarian remeasure
the horse without added protest fees. If opting for the
show veterinarian, his/her measurement will be final. In
the absence of a show veterinarian, a member of the
show’s Protest Committee shall measure the horse.
5. All measurements must take place in direct view of the
owner/trainer of protested animal, and the individual
who filed the protest.
6. Any animal submitted for an official measurement must
show no evidence of lameness. If lameness is determined
by the show veterinarian, this shall result in disqualification
of the animal for the balance of the competition,
and the owner of the animal forfeits fees and
winnings for the entire show for the protested animal.