Carbon.

Requires a utility to accept certain methods of payment from the department of natural resources (department) for utility service provided to a property owned by the department. Prohibits a utility from limiting or restricting the: (1) dollar amount to less than $10,000; or (2) number of allowable payment transactions for a singular invoice to less than five; with respect to a payment made by one of the specified payment methods. Provides that for any singular property owned by the department, the department may request from a utility a consolidated bill for the property. Requires a utility that receives such a request to provide the department with a singular invoice for the entire property, unless the utility is unable to do so because of billing limitations or other operational constraints. Requires the natural resources commission to obtain primary enforcement authority from the United States Environmental Protection Agency to regulate Class VI underground injection wells. Grants the natural resources commission authority to adopt rules to regulate Class VI underground injection wells. Provides a mechanism and regulatory scheme for underground storage of carbon dioxide in Indiana but excludes the carbon sequestration pilot project from application of the new requirements. Specifies that the carbon sequestration pilot project's Class VI wells are not experimental.