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According to the IRS, it is 501(c)(3)
People.
Yes, it qualifies as a tax exempt 501 C3 entity
Associations usually are 501 (c) 4s and charities are 501 (c) 3s. The difference is that 4's cannot accept charitable donations and 3s can.
501 is evenly divisible by 3, 167, 501 and 1.
501 / 3 = 167
501 / 167 = 3
501 / 501 = 1
501 / 1 = 501