Tanks with the following DOT number can no longer be filled or hydro tested:
DOT-SP 12695 (4500 PSI Tank)
http://www.pbnation.com/showthread.php?t=1516253
DOT E 10776-1800 (CO2 Tank)
*** UPDATE ***
Inocom has renewed their certification for tanks labeled SP-14624. They can now be filled and hydrotested.
Source