US SB3778

Expands the Section 45Q carbon oxide sequestration tax credit to include facilities that capture carbon in solid or liquid form, in addition to existing gaseous carbon capture methods

Defines "solid or liquid carbon capture facility" as any facility using equipment to capture carbon that would otherwise be released into the atmosphere as carbon oxide, including facilities achieving net carbon reduction compared to a baseline comparison system

Sets a minimum capture threshold of 1,000 metric tons of qualified carbon oxide per taxable year for solid or liquid carbon capture facilities to qualify for the credit

Adds underground storage chambers as an eligible secure geological storage option for solid or liquid carbon capture facilities, provided the carbon does not escape into the atmosphere

Applies to carbon captured after the date of enactment, with captured amounts measured in carbon dioxide equivalent at the source and verified at the point of disposal, injection, or utilization