ECNR check for US is not required?

[Devyani]

Tips for H4 says 'get your ECNR checked on your passport beforehand'. When I inquired with travel agencies, they told me that ECNR is not required for US.
Actually I am graduate, and my husband is Ph.D. So I am entitled for 'ECNR not required'. Should I get ECNR checked? Please guide me.

[Murali]

For US its not required.
How ever its better to get it done, you never know when u may need it while travelling across the world..