To search by document type, type document.type: followed by a specific document type. For example:

document.type:appointment

Executive Acts: Implements or refers to executive acts by the President.

• Appointment: Document appointing person to a position or announcement of the appointment.
• Convening: Calls for a government-sponsored meeting or declares its commencement.
• Declaration: Declares existence of a state of affairs warranting particular government action.
• Delegation: Delegates presidential authority to an official, agency or appointee.
• Directive: Directs officials or agencies to take certain actions or establish certain procedures.
• Executive Order: Orders certain actions, procedural changes or organizational changes.
• Nomination: Document nominating person for a position or announcement of the nomination.
• Pardon: Declaration pardoning some offender for a crime.
  
• Proclamation: Proclamation of some occasion or observance.
• Finding: Report on a state of affairs, often done in compliance with a law.
• Certification: Certifies to Congress that a state of affairs complies with a law.
• Determination: Reports to Congress that the President has determined something is the case.
• Notification: Officially notifies Congress certain action has been taken.