When a Senate File is received from the Senate, it is given its first reading and must be referred to the appropriate standing committee or division under Rule 1.11.
But if the House File companion of that Senate File has already been reported out of Committee and given its second reading and is on the General Register, the Senate File must be referred to the Chief Clerk for comparison pursuant to Rule 1.15.
The Chief Clerk reports whether the bills were found to be identical or not identical. Once the bills have been compared and the differences have been reported, the Senate File is given its second reading and is substituted for the House File. The House File is then considered withdrawn.
Pursuant to Rule 3.33, if the bills are not identical and the chief author of the bill wishes to use the House language, the chief author must give notice of their intent to substitute the House language when the bill is placed on the Calendar for the Day or the Fiscal Calendar. If the chief author of the bill wishes to keep the Senate language, no action is required.