Consider the following statements regarding the Advance Authorisation Scheme:

1. The eligibility of inputs is determined by Sector-specific Norms Committees based on input-output norms.

2. The simplification of calculations for composition fees helps in automation and faster service delivery by making the process more efficient and easier to understand.

3. Advance Authorization is valid for 1 year from the date of issue of such Authorization.

Which of the statement given above is/are correct?