Is a scientific poll official

Answer 1

Who certifies the results of any poll? Generally it is the polling agency itself, through conducting spot checks on accuracy. No government agency oversees poll results, so there is nothing to make them "official," with the exception of election polls.

Election polls are are not scientific polls, as they are not random samples of public opinion. Instead, everyone eligible to vote casts a ballot. Election polls are the only "official" polls.