1945: The Michigan County Planning Act and the Michigan Regional Planning Commission Act are signed into law |
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1940's |
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1945: The Michigan Society of Municipal Planning Officials (MSMPO) is formed. It is the 7th state planning association in the nation. |
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1948 study on master plans
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1949: Federal Housing Act is signed into law. Significantly increases the FHA mortgage insurance program for non-defense housing. |
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1950's |
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1953: MSMPO is renamed the Michigan Society of Planning Officials (MSPO) |
1956: Federal Highway Act is signed into law. |
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1957: The Mackinac Bridge is opened. |
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Conference Programs from the 1950's
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1960: Michigan becomes the first state to complete a border-to-border interstate highway (I-94). |
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1960's |
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1963: Michigan ratifies its fourth constitution. |
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1964 - 1968: Great Society is initiated including new programs, policies and laws. |
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1967: Detroit Rebellion.
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1966: MSPO is the largest state planning association in the nation, with 1,270 members |
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Conference Programs from the 1960's |
1970: The EPA is established. |
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1970's |
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1972: Clean Water Act is signed into law. |
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1976: Referendum vote banned throwaway bottles in Michigan |

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1978: The Headlee Amendment signed into law
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1978: The American Planning Association (APA) is formed from a consolidation of the American Institute of Planners (AIP) and the American Society of Planning Officials (ASPO). Click on the APA logo to read more about the history of these two parent organizations.
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Conference Program from 1978 |
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1980's |
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1981: Michigan's Right to Farm Act signed into law |
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1983: MSPO obtains 501c3 status |
1990: Americans with Disabilities Act signed into law |
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1990's |
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1995: First Memorial Scholarship Golf Outing is held |
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1995: MSPO turns 50!
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2000's |
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2000: Michigan Society of Planning Officials and the Michigan Chapter of the American Planning Association merge |
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2006: Michigan Zoning Enabling Act. MAP led effort to consolidate three zoning enabling acts into a single act. |
2007: Lasting from December 2007 to June 2009, the Great Recession, was the longest economic downturn since World War II. |
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2008: Michigan Planning Enabling Act. MAP led effort to consolidate three planning enabling acts into a single act. |
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2010's |
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2020's |
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2020: MAP has 3,992 members |