Grain Quality Improvement Act of 1988

Grain Quality Improvement Act of 1988 - Directs the Administrator of the Federal Grain Inspection Service (FGIS) to modify the FGIS mission statement to reflect the declaration of policy on the exportation of high quality grain contained in the United States Grain Standards Act.

Amends such Act to define "foreign material" for grain standard purposes as all material other than grain, including dockage.

Requires at least four members of the grain standards advisory committee to be agricultural commodity producers.

Directs the Administrator to use specified additional FGIS funds to carry out two specified grain quality studies.