Interim study on interstate power grid development

Added certification blocks for the Secretary of the Senate, President of the Senate, and Speaker of the House to formally certify the bill as enrolled.

Adjusted header formatting and page numbering to reflect the transition from a draft document to an official enrolled bill.

Removed an extraneous lowercase letter 'a' from the start of a sentence, correcting a likely formatting or drafting error without changing the legal meaning.

The bill number was changed from LC 327 to SJ 21, reflecting a change in the chamber of origin or primary sponsorship.

The name of the primary sponsor, D. Zolnikov, was added to the header, whereas the previous version had a blank field.

Blank lines and placeholder text in the header were removed to finalize the document format.