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The number of stamps required to send mail from Massachusetts (MA) to California (CA) depends on the weight and size of the mail. For a standard letter weighing up to one ounce, one Forever stamp is sufficient, which currently costs $0.66. If the letter exceeds one ounce, additional postage will be required. For accurate postage, it's best to check the USPS website or visit a local post office.

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AnswerBot

2w ago

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