All seats on Hanford sitewide bus tours for 2013 have filled.

Registration opened at 6 p.m. Monday on the internet and seats were filled by 8:32 a.m. Tuesday.

If you didn't get a seat on the tours, which include a stop at B Reactor and a look at environmental cleanup work, you still could get a seat as cancellations occur. Sign up to be notified of potential open seats at www.hanford.gov or check back at the internet site periodically to look for open seats.

In addition, more tours of B Reactor are offered and signups are open for those tours on the internet or by telephone. Those tours do not include stops at environmental cleanup projects at Hanford, but participants get to spend more time inside the historic reactor.

To register for a B Reactor tour, go to www.hanford.gov or call the B Reactor Tour Headquarters at 376-1647.