Esteemed space lawyer and fellow sci-fi writer, Laura Montgomery, reverse-lawyers (i.e. reverse engineers) the realities and legalities of launching vehicles into space on her blog.
Her excellent review of Promethea Invicta looks at the real world path set up by Congress. A path that, like so many Congressional acts, delegates the actual rule-making and regulation to other entities, such as the Secretary of Transportation. Ultimately, it’s the Federal Aviation Administration (FAA) that issues the needed licenses and permits.
Her Ground Based Space Matters Blog is an excellent resource for anyone that wants to learn more about private space activity, the FAA, NASA, and associated agencies.
The multi-talented Ms. Montgomery also writes excellent sci-fi. Her latest release, called Like A Continental Soldier, (Book 3 of the Waking Late series) just came out. Take a look at her author page and check out her other works.