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CEDAR RAPIDS, IOWA (AP) -- The Federal Emergency Management Agency has changed course about its trailers used to house flood victims.

The agency now says it will assist flood victims with temporary housing if they choose to move out of their FEMA-provided mobile homes over health concerns.Previously, agency officials had said residents could move out, but some might have to pay out of pocket for alternative housing.

About 100 residents packed into a room at Westdale Mall on last night to hear FEMA officials and health experts address concerns over formaldehyde issues. Bill Vogel, FEMA's federal coordinating officer, told them the 558 homes underwent rigorous testing before coming to Iowa.

He added that no residents had called FEMA with health concerns until after a report by Cedar Rapids TV station KGAN found high levels of formaldehyde in 20 trailers.

(Copyright ©2008 by The Associated Press. All Rights Reserved.)