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    There are 6 different Corps group events, namely
- Baton Twirling Corps

This is a corps in which each member must have one and only one baton.

- Show Corps/Twirling Corps with Props

A corps emphasizing total development of a theme.

- Show Corps/Twirling Corps with Props and/or Scenery

A corps emphasizing total development of a theme.

- Parade Corps – Recorded & Live

A corps performing a routine suitable for a street parade with a baton.

- Street Parade Corps

Open division for new corps at local contests.

- Flag Corps

Emphasizing variety and skill of handling various equipment while performing a variety of drill and movement formations.

    In addition, there are 4 group of solo Corps events, namely
- Flag Solo
- Music Section
- Drum and Mallet Solo, Duet, Trios and Ensembles
- Corps Prince/Princess


Competition age -an individual's actual age on the previous September 1st


Large corps- a corps with a minimum of 26 members

Small corps-a corps with a maximum of 25 members

Juvenile corps-average competition age of all members less than 11.00 with no more than 4 members with twirling age of 12 or older

Junior corps-average competition age of all members other than musicians less than 14.00 with less than 7 members  with twirling age of 16 or older

Senior corps-average competition age of all members other than musicians is 14.00 and older or any corps that has at least 7 members of twirling age 16 or older

Beginner corps- a corps that has not won more than five first place awards in beginner or novice competition or a first place in an advanced competition. At least 50 percent of the members have never competed in an advanced corps.

Individual events-divisions are defined the same as solo twirling rules

Mount-any lift or form that is two stories or more

Music-sounds having rhythm or melody (includes singing , chanting, and noises in a set rhythm)

Twirling time-12 or more members twirling one, two, three batons or more at the same time .Also included are aerial exchanges, momentary stops of 1 or 2 counts when part of a twirling section, twirling while marching, duet tricks when executed as a result of a toss(about 8 counts), and peel-offs while some type of twirling continues and not poses.  If 12 twirlers are twirling and one drops a baton, timing continues while the person is in the process of picking it up. Juvenile Corps  - same as above except 10 members instead of 12

Unit-2 or more members

Questions and rule clarifications

When does set-up time start?
When the announcer acknowledges that the corps can take the floor
What kind of props are used in twirling corps?
Scenery, backdrops and props are not allowed at all. This includes changing, altering or removing articles of clothing during the performance. Example-scarfs, hats , capes, skirts ,etc. cannot be used in a production number. A vest or shirt cannot be taken off and reversed. A skirt cannot be used to make a sign. Glasses, streamers, etc.  cannot be taken out of a pocket. No "gimmicks" are allowed. Violation is a 2 point penalty.
What is a boundary penalty in corps?
A two point boundary penalty is accessed when a unit or section goes out of the floor markings during the performance. An individual is penalized only when the person leaves the floor due to improper choreoghraphy. An individual is not penalized for going out of bounds to pick up a dropped baton, accidentally stepping on a line,  or any reason that is just an individual error.
What must the dimensions of a flag be in flag corps?
A flag shaft must have a minimum of 30 inches in length and be at least one-half inch in diameter. A pike is construed to be a pole at least five feet in length with a piece of material attached to be used as the flag.