File Naming Convention
Each plan submitted to the the Senate Committee on Reapportionment gets a unique 8-character plan name. The plan name begins with a 3-character prefix: "S" followed by a 2-digit district number for plans submitted by Senators, or "PUB" for plans submitted by other individuals or organizations. The fourth character indicates plan type: "C" for Congressional districts, "H" for House districts and "S" for Senate districts. Within each plan type, archived plans are numbered consecutively. This 4-digit sequence number appears as characters 5-8 of the plan name.
Plans sponsored by House members begin with the letter "H" and can be accessed from the House redistricting plan page.