RINDGE — Police Chief Todd Muilenberg submitted his resignation to the Select Board last week.

His last day will be Sept. 22., exactly three years after his first day on the job Sept. 22, 2014.

On Tuesday Selectwoman Roberta Oeser said Muilenberg submitted his resignation to the board at its Wednesday night meeting last week, but that he had asked that the news be held till Monday. She said she reluctantly and with regret accepted his resignation.

“The Board of Selectmen appreciates the effort and contributions of Chief Muilenberg and wish him the greatest success in the future,” the board said in a news release Monday. “The Board will be taking steps in the next few weeks to fill the position.”

The board also released excerpts of the resignation letter in the news release.

“This decision was not reached easily,” Muilenberg said in his letter of resignation to the Select Board. “I greatly appreciate the opportunity that I was afforded to lead the men and women of the Rindge Police Department and serve this community. It has been an honor. I truly hope the citizens of Rindge, and its elected officials can find a way to unite for the purpose of establishing mutual respect, trust, and understanding. Only then will a realistic shared vision for the town’s long term substantially be found.”

Muilenberg came to Rindge in 2014 after 24 years with the Scottsdale, Ariz., police department. He started as a patrol officer, and rose to the rank of lieutenant and watch commander of the Uniformed Services Bureau.