The defendant raises two issues on appeal. The first is whether he was required, as a self-employed homeimprovement contractor, to identify the temporary work sites where he performed his work as his “work address” under the SORB registration statute, G. L. c. 6, § 178E. The second is whether the defendant’s condition of probation — that he was “not to 6 work, volunteer, [or] reside with children under [sixteen] years old” — prohibited him from performing home-improvement services at a house where a young child resided and provided adequate notice of such a prohibition.