That's not true. My wife teaches in a BY in that area and the students are not required to wear masks. We aren't happy about it, but the school made policy.
For comparison, here is BY Baltimore rules, which are being fully enforced. Some will love them, some will think they are excessive:
-Students without completed and signed forms will not be admitted to school. Once others have gone to class, any such student will be led to a quarantine spot and remain there until a form is submitted. The office will be able to address such situations only after school has begun. Students who arrive at school once the school day has started must turn in their forms before proceeding anywhere else in the building.
- Completing and signing COVID forms on a daily basis is demanding and challenging – but our key to being able to have safe, regular school.
-Masks need to be worn at all times except during lunch time (according to the guidelines below) and regular mask breaks at the end of each period.
-Enter and exit the building according to the front doors’ grade designations.
-Snacks may be eaten only when you are sitting at your desk, distanced from others, during mask off times, or outside if distanced. Bring your snack with you to class beforehand. This may be hard to get used to, but there is no eating, drinking, or snacking except according to the guidelines outlined here.
-Under these circumstances, we have received a psak that students eating in the classrooms may wash for motzei in the bathroom and make the bracha as you dry your hands outside the bathroom.
-Students may eat lunch at their distanced desks or outside (nowhere else in the building). You may eat with others outside if you are distanced at least five feet apart. There is very little room for this out front, and you may eat in the field. Those who eat in the classrooms may afterwards walk outside unmasked, if distanced from others. The auditorium will be available to a different grade each day for distance eating. We have extended lunch time several minutes in order for the options above to be more feasible. If you are out of earshot of the bell, be sure to bring a watch. You must be on time to afternoon classes.
-Students may also walk briefly outside unmasked and distanced during afternoon break. It is your responsibility to be back in class on time.
-Students will receive lockers, but you are asked to arrange your belongings so that you will go to your locker only infrequently during the day. Also, please avoid going to your locker regularly at the end of the day.
-Loitering at lockers or in the hallways or bathrooms will not be permitted, even masked. Be prepared to spend spare time at your desk in the classroom.
· When walking in corridors, stay to the right, as will be indicated by directional arrows.
· We plan to provide cleansers (or you can bring your own), so that classes can wipe down any desks used, which you will leave before the next class. Homeroom classes will remain in the same classroom throughout the morning.
-Grades will be kept in their individual, designated areas (in general).
-Staircases will be designated: Front stairs- eleventh grade; Back stairs- ninth grade; Middle stairs- tenth and twelfth grade.
-For afternoon classes, we will be alternating asking different parts of the alphabet to wait for one minute after the bell before leaving class, to prevent hallway crowding. We will start the year with one arrangement and alternate during the year.
-At school starting and ending times, remain distanced as you wait your turn to enter or leave.
-Students are expected to remain and interact only in their designated grade areas during the school day.