R302       *Custom parts, generally from this year only. Fabricated Items created before Kickoff are not permitted. Exceptions are:

R304       *During an event, only work during pit hours. During an event a team is attending (regardless of whether the team is physically at the event location), the team may neither work on nor practice with their Robot or Robot elements outside of the hours that pits are open, with the following exceptions:

I101         *It’s your team’s Robot. The Robot and its Major Mechanisms must be built by the FIRST Robotics Competition team.

R203       *General safety. Robot parts shall not be made from hazardous materials, be unsafe, cause an unsafe condition, or interfere with the operation of other Robots.