John Nehasil, FACI

John Nehasil, FACI, has been employed by the American Concrete Institute (ACI) for over 45 years, including over 14 years of editorial and publishing experience and 33 years of experience in certification program administration. Mr. Nehasil is an ACI Fellow, graduate of the U.S. Chamber of Commerce’s Institute for Organizational Management, and member of the American Society of Association Executives.

        An unexpected error occurred: Network error: Response not successful: Received status code 400

            [
  {
    "message": "Variable \"$input\" got invalid value { excludeContentTypes: [\"Contact\", \"Company\"], contactId: 21366878 }; Field \"excludeContentTypes\" is not defined by type AllAuthorContentQueryInput. Did you mean includeContentTypes?",
    "locations": [
      {
        "line": 1,
        "column": 29
      }
    ],
    "extensions": {
      "code": "BAD_USER_INPUT"
    }
  }
]