Discussion:
B2 Visa vs. US Travel Date
  Hi,
My parents recently got 5 years B2 visa. I want to know that is there a limit of days, like 180 days, within which they have to enter US atleast once?
Can they plan to enter US anytime during the validity of the visa, maybe after an year or so?
Thanks in advance.
Answer:
They can seek entry at any time during the visa's validity.
Answer:
Official Link
  Is there any official link to the statement thatone can enter US anytime during the validity of Visa and not befor esay 180 days/6 months. I have seen people saying it is ok but have not seen anything official on it yet. Thanksh
Help Needed Visitor Visa Rejected !!!
Visitor visa question(s)
Reentry on visitor's visa within 3 months of prior visit
L1 to H1 after 6 years of L1 allowed?
H1B Amendment - proccessing time question
Filing for 7th year extension-time period,sonner or later
H1 transfer after LC cleared
H1B Evidence Requested
If extension is denied (again)