Entering on immigrant visa

[immihelp]

> 1. Once the immigrant Visa is granted, can the family member come to the
> US by themselves or does the primary beneficiary has to accompany the
> family member ?
>
> 2.One of the family members will turn age 21 in Feb 2008. If the visa is
> issued before the birthday does he have to enter the US before he turns 21
> ? If not how long does he have before the visa expires ? Also can this
> person come by himself ?

[immihelp]

1. Primary beneficiary has to come along with or before rest of the people.
2. Yes, he should enter before 21.