HALLOWELL – The Maine Department of Conservation is to hold its first Forest Certification Workshop at 8:30 a.m. Friday, Nov. 12, at Maple Hill Farm in Hallowell. Speakers include Gov. John Baldacci; John Oliver of L.L. Bean; and David J. Refkin, president of the paper-purchasing subsidiary of Time Inc. People may register or obtain more information by calling Rondi Doiron at 287-8421.