Final answer:
The word 'except' in the sentence 'There are several nonprofit organizations that will except paint for recycling' represents an error. The correct word to use in this context is 'accept'.
Step-by-step explanation:
The word in the excerpt from the how-to guide that represents an error is "except." The correct word should be "accept." When considering proper word usage, "except" is typically used as a preposition or a conjunction to exclude something, whereas "accept" is a verb that means to receive or agree to take something.
The sentence should correctly read: "Otherwise, there are several nonprofit organizations that will accept paint for recycling." Misusing these words can lead to incorrect communication of the intended message.