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BIM / Pre-BIM

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Basic Index Mapping / Pre-Basic Index Mapping.  BIM and Pre-BIM describe parcel mapping of lower spatial accuracy than POLARIS.  BIM quality parcel mapping was derived from moderate quality base mapping, at scales of 1:10,000 or less for areas of Ontario where legal  surveys or control points are not consistently available.  Pre-BIM is the lowest quality mapping for areas where base mapping is not available. The locational accuracy of BIM and Pre-BIM mapping in highly variable and comes with no guarantees of quality.

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