What is the new code and procedure for installing a 200 amp grounding service for a mobile home?

Sorry, but the amount of all the individual codes is staggering. You need to have some idea of what to do. Also consider the technques and methods and types of materials typical for your area, and city, county, state codes.

Manufacturered homes have their own requirements.

If your just starting and not sure how to start I need to suggest a how to book , contact the local building dept or code enforcement office, and very important, contact the power utility as they have their own requirements.