You may check CBP web site for detail.
hC[MYAaF /M;A)z http://www.cbp.gov MR@*09zP(? W=$ d|*$ The following is mentioned in U.S. Customs and Border Protection Declaration Form
6R+m;' x\
m !3 Money And Other Monetary
_f8<t=R Instruments
jHj*S9: ` You may bring into or take out of the country, including
l`s_ #3 by mail, as much money as you wish. However, if
E}V8+f54S it is more than $10,000, you will need to report it to
SqhG\qE{Qj CBP. Ask the CBP officer for the Currency Reporting
9
L{JU Form (FinCen 105). The penalties for non-compliance
> T,^n
{_v can be severe.
TrHz(no “Money” means monetary instruments and includes U.S.
=*aun& or foreign coins currently in circulation, currency, travelers’
(@H '7 , checks in any form, money orders, and negotiable
m%- instruments or investment securities in bearer form.
