Where it is given in electronic form the notice must comply with the technical requirements set by the Principal Council (paragraph 30B(3)(b)(ii) and paragraph 30C of Schedule 12).
Pan fydd rhybudd yn cael ei roi ar ffurf electronig, rhaid iddo gydymffurfio â'r gofynion technegol a osodwyd gan y prif gyngor (paragraff 30B(3)(b)(ii) a pharagraff 30C o Atodlen 12).