 Under the reorganization that created ESSA, both the Coast and Geodetic Survey and the United States Weather Bureau, although retaining their independent identities, came under the control of ESSA, and the Coast and Geodetic Survey Corps was removed from the Coast and Geodetic Survey and subordinated directly to ESSA, becoming the Environmental Science Services Administration Corps (ESSA Corps).As of that date, Nygren became an officer of the new ESSA Corps.Under the reorganization, he also became Deputy Director and Chief Planning Analyst for Service Programs in the Office of Planning and Program Evaluation.