Apostille Validity_Norway Family visa

Hello,
I need some help with regard to applying for work permit for Norway visa.
My husband will be applying for Norway Work permit which will be done by the company he is working at present.He will apply for my visa as well.We need a marriage certificate.
My question is -
1.We need to get the marriage certificate apostilled (in India). Is there a validity of stamp for Norway visa as generally for some countries  it is 3/6 months.We got it done for Netherlands visa  around 2 years back and it was 6 months.
2.Can i use the apostilled marriage certificate which i got 2 years back for Norway visa?
Thanks!

As per visa norms apostille document should not be older than 6 months.