The Treatment Plant Key is necessary for infiltrating the Incineration Disposal Plant P-12A's control room. There are two copies of this key available; the only difference is that one has a barcode attached to the keychain. The barcoded key can be used to unlock a cabinet containing a Rocket Launcher.
- Sumner, Christian; Shotten, Brian; Owen, Michael, eds (9 November 2005). Resident Evil Archives: Umbrella's Virus Uncovered. Translated by Zpang America, Inc.. BradyGames. ISBN 0744006554.
- Ōno, Tetsuya; Masui, Kō, eds (31 March 2005). biohazard archives. Famitsu. ISBN 4-906-582-31-1.
- ↑ Sumner, Shotten, Owen (eds). Archives. p.191