Please provide me with the rest of the question. "Which organization serves as the principal..." needs a completion to be a question I can answer. For example:
- Which organization serves as the principal regulator of the financial industry in the United States?
- Which organization serves as the principal fundraiser for the local animal shelter?
- Which organization serves as the principal distributor of this particular medication?
Once you provide the complete question, I can write a detailed and SEO-optimized blog post answering it.
