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Updated July 13, 2018

At least a half-dozen investigations into Scott Pruitt’s conduct will proceed against the former Environmental Protection Agency administrator, despite his July 5 resignation.

The E.P.A. inspector general’s office announced in early July that five of its inquiries will continue. They are examining Mr. Pruitt’s frequent travel to Oklahoma and first-class flights; the management of and payment for his 24-hour security detail; a series of hiring and pay-raise decisions affecting political appointees; and the preservation of Mr. Pruitt’s emails and text messages.

An agency spokeswoman also said investigators would compile a “factual record” of a meeting that Mr. Pruitt held with the National Mining Association in April 2017.

In addition, the House Oversight and Government Reform Committee is moving forward with a broad investigation into Mr. Pruitt’s spending, management and use of federal resources.

Here is a guide to the investigations Mr. Pruitt has faced, including those that are continuing.