!Here are the rules about 10+ boats or more:
http://www.nps.gov/amis/planyourvisit/tournaments.htm
Some of the rules are:
PER MANAGEMENT
Permits:A special use permit will be required when any fishing tournament exceeds ten (10) boats. The application for special use permits must be received by the park at least 72 hours before and no earlier than 12 months in advance of the tournament start date. A permit processing fee of $25.00 must be submitted with the application. Applications will be processed on a first-come, first-served basis, and a permit or other response will be given by park within one week after receipt. The addresses for the application are as follows:
Written: Amistad National Recreation Area
Attn: Ranger Activities
4121 Veterans Blvd.
Del Rio, Texas 78840
Phone: (830) 775-7492
Fax: (830) 775-7299
For tournaments less than 10 boats:
For fishing tournaments of ten(10) boats or less, the tournament director/organizer shall notify the park by phone at (830) 775-7492 x 202 at least 72 hours before the tournament date. The notice should include the following:
Tournament name
Organizer/director name and phone number
Launch and weigh-in dates, times, and locations
Number of participants
number of boats.
Exceptions: Certain unexpected conditions may occur at the lake that could affect a fishing tournament. These conditions could include: significant changes in lake level, adverse fisheries impacts, public safety problems, or other major problems. These conditions must be considered by park managers, realizing a necessary decision to modify permit conditions could impact tournament schedules. Recognizing the potential impact on fishing tournaments, the park superintendent will make a decision only after working closely with the tournament director/organizer and the Del Rio Chamber of Commerce Lake Committee. Any decision will be made as soon as possible and with the intent to minimize or eliminate any adverse impacts.