Complex sentence: Parliamentary procedure requires that members address the "chair" rather than the "chairman", or by using a person's name-one of many customs intended to maintain the presiding officer's impartiality and to ensure an objective and impersonal approach.
Split into simpler sentences: Parliamentary procedure requires that members address the "chair" rather than the "chairman", or by using a person's name. This is one of many customs intended to maintain the presiding officer's impartiality and insuring an objective and impersonal approach.