Students in Catholic schools across the Region will have the day off tomorrow.
The Ontario English Catholic Teachers' Association is holding a one-day full withdrawal of services across the province.
The Niagara Catholic District School Board says this will close all elementary and secondary schools.
Parents are encouraged to have alternate childcare arrangements in place.
The board says all schools will re-open on Wednesday.

Gov't Wastes Too Much Money: Candidate
Gov't Pressured to Investigate Whale Deaths
Niagara Falls Receives Payment for Casinos
Niagara Falls Man Charged with Child Porn
Toronto Man Charged with Drug Trafficking
Respecting Taxpayers, Douglas Memorial Candidate's Concerns
5 Teens Charged with Threatening Couple
Niagara Region Working to Help Business