- Self-nominations are not accepted.
- Joint nominations will only be considered when nominees have collaborated closely — usually in the same laboratory — on the work to be recognized by the award.
- NAS membership is not required to nominate or to be nominated.
- International nominees are eligible for nomination unless explicitly stated otherwise.
- If the award has an age restriction, nominees are considered eligible if they are no older than the restricted age on October 1, 2018.