Teachers Association of Baltimore County, Join TABCO Now! Be part of a strong union. Join now! What is TABCO?TABCO is an organization representing all educators in Baltimore County Public Schools. TABCO represents over 9,000 individuals. Learn More TABCO/BCPS Master Agreement 2020-2023The new Master Agreement, covering 2020-2023, has been ratified and signed. Learn More TABCO believes self-care is important.BCPS, Help When You….