There is no single HR policy for the US, just as there isn't one for India or Australia, or any other country.
HR policies are formulated by individual organisations and companies based on the relevant laws of the country or jurisdiction they work under.
You provide no additional information as to the purpose of this question. One could assume it has something to do with setting up a business in the US. If that is the case you will need to contract someone in the US to develop the necessary policy. Talk to your company lawyer for advice on how to approach this.