GD and T

Form	Straightness	Controls the straightness of a feature in relation to its own perfect form
	Flatness	Controls the flatness of a surface in relation to its own perfect form
	Circularity	Controls the form of a revolved surface in relation to its own perfect form by independent cross sections
	Cylindricity	Like circularity, but applies simultaneously to entire surface
Profile	Profile of a Surface	Controls size and form of a feature. In addition it controls the location and orientation when a datum reference frame is used.
	Profile of a Line	Similar to profile of a surface, applies to cross sections of a feature
Orientation	Perpendicularity	Controls the orientation of a feature which is nominally perpendicular to the primary datum of its datum reference frame
	Angularity	Controls orientation of a feature at a specific angle in relation to the primary datum of its datum reference frame
	Parallelism	Controls orientation of a feature which is nominally parallel to the primary datum of its datum reference frame
Location	Position	Controls the location and orientation of a feature in relation to its datum reference frame
	Concentricity	Controls concentricity of a surface of revolution to a central datum
	Symmetry	Controls the symmetry of two surfaces about a central datum
Runout	Circular runout	Controls circularity and coaxiality of each circular segment of a surface independently about a coaxial datum
	Total runout	Controls circularity, straightness, coaxiiality, and taper of a cylindrical surface about a coaxial datum