The most important frameworks for an ICO to evaluate if a token is a security or not:
https://www.coinbase.com/legal/securities-law-framework.pdf
Howey test:
https://docs.google.com/spreadsheets/d/1QxOV2dgxO3C_TyVE0-41ZwLlzPmB-EE1NNshJGuedCU/edit#gid=0