HAC may refer to:

Arts

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Conventions

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  • Hague Adoption Convention, a 1993 international treaty on protection of children and co-operation in respect of intercountry adoption
  • High Ambition Coalition, an informal group of approximately 61 countries within the UN Framework Convention on Climate Change (UNFCCC)

Government

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Organisations

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Science and engineering

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Sport

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Transport

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Other uses

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See also

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