Leaving Cert students might have had to wear masks to school and have their temperatures taken if the exams went ahead as planned this summer.
Last week it was announced that the traditional exams were to be replaced by predictive grades.
While students that do not wish to accept the calculated grades will be able to sit the exams at a later date, that will only happen in the autumn or "whenever it is safe" for the exams to be held.
If the Leaving Cert went ahead in late July as previously planned, no student would be allowed to attend school if they were symptomatic of living with someone who was.
Students may have had to wear masks and have their temperatures taken.
Strict social distancing and time limits in exam halls would also have applied.
The decision to cancel this year's Leaving Cert and and replace it with predicted grades has been supported by the TUI and ASTI.
However, the TUI is calling on the Department of Education to bring in a protocol to protect teachers from being contacted by students and parents trying to influence their marks.
TUI President Seamas Lahart has warned that a system of logging such efforts is in place, and that "such a foolish practice" won't go unnoticed.
Teachers unions are meeting with the Department of Education again today to discuss the new grading system.
Meanwhile, the Department says that it will be issuing teachers with detailed guidelines and training on how to mark this year's exams.
