Iaabo 23
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Welcome to the Internet home of IAABO Board 23 - Central Maryland, a district board of the International Association of Approved Basketball Officials (IAABO). Incorporated as a non-profit organization in Maryland in 1980, Board 23's purpose, among other goals, is to promote the welfare of the game of basketball, its players and officials and to maintain the highest standard of basketball officiating.

Recent Updates:

Upcoming General Membership Meetings:

The following are the board 23 meeting dates for 2015-2016. All meetings will be held at Lansdowne High School (cafeteria)
starting at 6:30.

09-28-15 - General Meeting
10-19-15 - General Meeting

11-30-15 - General Meeting
02-08-16 - General Meeting
03-07-16 - Annual Meeting

2015-2016 Applicant Class:

The 2015-2016 New Applicant training class began in August 2015.

IAABO Board 23 Basketball Play Day (2015)

PLAY DAY Brochure

Boys - November 27, 2015
Girls - November 28, 2015


Northeast High School 1121 Duvall Highway Pasadena, MD 21122

To Register, Contact via email: playday@iaabo23.org

18 to 24 squads for Boys
18 to 24 squads for Girls

Team Fee: $80
Due by November 10, 2015 to
IAABO Board 23
6082 Sunny Spring
Columbia, MD 21044-3615

Rulebox Registration

Just a quick reminder that those who have been registered with the ruleboxsoftware will be able to renew their subscription after September 28, 2015 for $6.00. Just click on the link below and click on the renew subscription button. I would suggest that you go to the website and click login to make sure that you remember your user and password. If you did forget it, just click on the forgot user/password. The administrators of the software will send you the information to your email that you registered with.


If you have not previously registered with rulebox and would like to register, go to the same link and register. It will require you to pay a $25.00 fee. You will need a credit or debit card to complete the transaction.

Three-Person Mechanics:

Three-Person Mechanics

It is very important that each of us use the NFHS signals and mechanics during these playoffs.  The officials selected to do these Regional and/or State Playoffs will be observed by designated Persons by the MPSSAA. Emphasis will be on the "Long Switch".

The only difference is that the old lead (tableside and opposite tableside) when going in the opposite direction on throw-ins.  You also want to look at the old center (tableside and opposite tableside) when going in the opposite direction on throw-ins.

Membership Form 2015-2016:

The Board 23 membership form can be downloaded via the link below:

2015-2016 Membership Form

The applicant evaluation form can be downloaded via the link below:

Applicant Evaluation Form (.PDF)

Executive Board: Your executive board members are listed below. Please reach out to any one of them with questions or concerns.

IAABO #23 Game Site Directions