The Unified Business Identifier number, or UBI, is a nine-digit number used by the state of Washington to identify businesses there to local agencies. Businesses in Washington state use a Unified Business Identifier number for filing, taxes and identification with state agencies, according the Washington Secretary of State website.
Definition of preliminary for English Language Learners. : something that comes first in order to prepare for or introduce the main part of something else.
3.2.1 Preliminary treatment. The objective of preliminary treatment is the removal of coarse solids and other large materials often found in raw wastewater. Removal of these materials is necessary to enhance the operation and maintenance of subsequent treatment units.