Not anymore. Supposed to be a totally clean copy, that means all the lines, marks & aids you may have made during training need to be erased or removed.
Interesting how highlights you marked a year ago before the rule change came in force a couple of months ago might be viewed.
Be interested to know how well/determined this is actually been policed/enforced.
Back in 1999 when all this changed (for the worst) the accepted convention was no highlights or extra information but pencil lines were okay as it was "a working document" the trouble is the 'competent authority' keeps changing its mind.