When going before a public meeting on an issue, make sure to properly identify yourself as an opponent or proponent. Let the chairman know if you want to speak first or last; usually they will accommodate you.
Normally, if there is TV coverage, it is best to be on first; on the other hand, the last presentation may be the best remembered. Being last sometimes will give you an opportunity to clarify any questions or refute any points the opposition may have raised. It will also give you an opportunity to watch the committee's reaction to other people's statement and positions. It will help you identify any support you may have on the committee and aid you in making a more effective presentation.

Which position you choose will be a judgmental decision on your part. However, beware if it looks like it's going to be a long, drawn out meeting. Don't hold back too long or you will lose their attention. They may get bored and upset to the point where your presentation will be totally ineffective no matter how good it is.

Be prepared. Provide a copy of your prepared position statement for each member on the committee. Use valuable tools such as large graphs or illustrations. They will make your presentation more professional.

Make sure you know your opponent's position and be ready to have answers or rebuttals if necessary.

When you get up to speak, state your name and whom you represent. Explain in brief terms why you are in support or opposition. Then talk about the specifics of your position. Try not to read your presentation. Have an outline on the table or podium in front of you. This type of presentation will give a better image and rapport with the committee. It is more personal. Eye contact and facial expressions are critical. Relax and assure them you are one reasonable person talking to another. Concede a fair point. Don't be afraid to tell the committee you don't know the answer to a question, but be sure you let them know that you will get an answer for them -- then make sure you do!

In closing your statement, summarize your main points and ask the committee for favorable consideration. Thank them for hearing your views.