In an effort to help educate Town Meeting members about proposed zoning amendments on the fall warrant, the Planning Board has started a series of public hearings. The first session, examining proposals to update the home occupations section of the town zoning ordinance and the bylaw governing signage and outdoor lighting, began Wednesday. On Aug. 28, the board will open its review of a proposal to adopt a new zoning bylaw, the “Community Enhancement and Investment Overlay District,” and an amendment that would update an article that governs off-street parking and loading. The changes are being proposed as part of the implementation of the 2010 Master Plan. The Aug. 28 hearing is scheduled to begin at 7:30 p.m. in the town offices at 50 Billerica Road. Both of the hearings are expected to continue through September, planning officials said. To review the proposed amendments, visit www.townofchelmsford.us or stop by the office of the town clerk or the Planning Board at 50 Billerica Road. For more information, call Evan Belansky, the town’s director of community development, at 978-250-5231.