Explanation:

Both the statements are correct. 

Reference to Commission for filling up of vacancies-

• When a vacancy arises in the SC or HCs, the central government will make a reference to the NJAC.
• Existing vacancies will be notified to the NJAC within thirty days of the Act entering into force.
• When a vacancy arises due to the completion of term, a reference will be made to the NJAC, six months in advance.
•  For vacancies due to death or resignation, a reference must be made to the NJAC within thirty days of its occurrence.