Which law or policy provides resources for holistic services for survivors, prohibits united states funds going to any country using child soldiers, and imposes reporting and compliance requirements on federal agencies, including the department of defense to ensure united states government taxpayer money does not support human trafficking?

I believe the answer is: Trafficking Victims Protection Reauthorization Act (TVPA)
Trafficking Victims Protection Reauthorization Act (TVPA) was created in 2000 and regarded as the first comprehensive aproach that is aimed to prevent and prosecute crimes related to trafficking. Due to its comprehensiveness, The Trafficking Victims Protection Reauthorization Act (TVPA) also used as an international standard for other countries as well.

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.