T-shirts orders are separate from the registration forms. The Regional Office prefers orders to be placed and paid for online.
Otherwise, the pre-order forms are available to download in PDF format (broken link) and are to be sent along with correct payment of $13 per shirt, to the regional office by deadline. Parents may send the pre-order form along with payment directly to the regional office or through their student's teacher. No late T–shirt orders will be accepted. A limited supply of T–shirts will be available on the day of the fair for $15.
T-Shirt Ordering Deadline for the Middle School/Senior High School Division is January 15, 2013.
The Elementary School Division T-Shirt Ordering Deadline is March 29, 2013.
2013 Inpiration: Thomas Edison

[PDF] T–Shirt Pre-Order Form for Middle School/Senior High School Division of the Regional Science Fair (1 MiB)
[PDF] T–Shirt Pre-Order Form for Elementary School Division of the Regional Science Fair (1 MiB)