A representative from the Treasury Department’s inspector general’s office told Congress on Wednesday that the Obama administration may not be able to complete testing of Obamacare’s enrollment system before it is set to go live on Oct. 1, warning it could cause, “significant delays and errors” in processing applications for individuals purchasing coverage on the new health insurance exchanges.

“The HHS and IRS have jointly developed an interagency test plan for the upcoming health insurance enrollment,” Alan Duncan, an assistant inspector general with the Treasury Inspector General for Tax Administration’s office, testified. “We are concerned that final integration testing for all the agencies’ systems, communications, and the federal and state exchanges may not be completed before the start of the enrollment period in 2013. The lack of adequate testing could result in significant delays and errors in accepting and processing (Affordable Care Act) applications for health insurance coverage.”

Duncan made the comments at a hearing of the House Oversight and Government Reform Committee’s  Subcommittee on Energy Policy, Health Care & Entitlements.  His prepared statement before the committee can be read here. Relevant video is above.