Thanks to our members for a great year! Have a great Holiday Season!

Welcome

You have reached the MAC-NVBUA association member website. We attempt to provide information and resources to assist our members in having a great member experience and umpiring.

Our umpires serve the greater Washington, DC, metropolitan area, including youth baseball, scholastic baseball, and adult recreation. Our assigning group also provides opportunities in college-level baseball.

To learn more about the life of our association, read our current or back issues of Blue Crew News, our membership online newsletter. If you have any questions about the association, please use our contact form to submit a question or comment.

Our Most Recent Issues

Blue Crew News

BCN: 2025 Issue 17

Dec 11, 2025

Editor's Message Before I recap the banquet, I wanted to share that Arbiter is now open for blocking through August 2026. Please take a few moments at your earliest convenience and update your availability to help the association reduce turn-backs. On Saturday,...

BCN: 2025 Issue 16

Nov 24, 2025

So, yes…as you are well aware, Blue Crew News is indeed a baseball umpire-centric publication and I wanted to take a moment before introducing this month’s edition to give you a brief testimony on officiating MAC’s other sport…volleyball.

BCN: 2025 Issue 15

Oct 21, 2025

Before we get to the buffet, I want to take a moment and talk about the state of technology that is of great interest to you, the developing, emerging umpire.

All Issues