The submission deadline for nominations for Physics, Chemistry, Physiology or Medicine, Literature and Economics is 31 January.[11] Self-nominations and nominations of deceased people are disqualified.
The names of the nominees are never publicly announced, and neither are they told that they have been considered for the Prize. Nomination records are sealed for 50 years.[12] In practice, some nominees do become known. It is also common for publicists to make such a claim, founded or not.