Mr. Ekeus said that before he could make any recommendations on the sanctions he would have to oversee additional inspections and tests based on new information supplied by Baghdad - "thousands and thousands and thousands of documents."
Beginning this weekend, one port director at each location will oversee all immigration, customs and agricultural inspections.
The board of governors of the International Atomic Energy Agency, which oversees nuclear inspections, is scheduled to meet Monday.
As director general of the Supervisory Bureau, he oversaw inspections last year that resulted in the banks' reclassifying nearly $66 billion in loans as troubled.
Former immigration officials said that moving Mr. Cronin to oversee inspections would also let Stuart Anderson, the agency's top official for plans and policy, assert more influence over immigration programs.
In 1995, the year Dr. Bier joined the C.D.C.'s program, and again in 1996, his X-ray machine failed the image-quality test given by the Food and Drug Administration, which oversees inspections.
Iran has demanded the agency remove the official who oversees inspections of Iranian facilities, and it has barred more than 30 inspectors, all from countries that supported sanctions.
"The only two factories in Taixing that make glycerin don't even make glycerin," said Jiang Peng, who oversees inspections and investigations in the Taixing branch of the State Food and Drug Administration.
His father, who is retired, was the chief of the New York Police Department's Inspectional Services Bureau from 1986 to 1992, overseeing special investigations, intelligence operations, inspections and internal affairs.