Charities in the US and money laundering

Question

What regulations apply to charities regarding money laundering?

Do they have any equivalent to 'know your client', like 'know your donor'? Do they have a duty to report suspicious transactions? Are they forced to have their accounts audited?

Answer 1

Most U.S. money laundering laws that apply to all private businesses, including reporting certain kinds of suspicious transactions and doing due diligence that a grant does not amount to support of a terrorist organization, apply to charities.