[Talk-us] Caltrans exit numbers

Richard Weait richard at weait.com
Mon Mar 28 17:44:29 BST 2011

On Mon, Mar 28, 2011 at 12:15 PM, Alan Mintz
<Alan_Mintz+OSM at earthlink.net> wrote:
> At 2011-03-23 04:22, Dale Puch wrote:
> A quick note, do not confuse public records as always meaning public
> domain.
> Some states may not have laws specifically preventing agencies from claiming
> copyright, not apply to all levels of government, or have exceptions to
> which works.
> IE. I think it was Michigan that specifically copyrights it's gis data.
> Some "offical" state clearinghouses may claim copyright on what should be
> public domain from the various agencies.
> http://wiki.openstreetmap.org/wiki/Potential_Datasources#U.S. is the best
> compilation of sources and notes about them I know of for our use.  I would
> suggest to update it with any information you come up with.
> Hasn't there been recent case law, though, that enforces a federal principle
> (?) that any data produced by a government agency must be public domain
> (excepting obvious things like national security)? Wasn't Santa Clara
> County, California sued successfully?

We have a long way to go before we can presume that all data on a gov
web site is Open Data.  Some sites include "data from partners" or
purchased from data providers which won't necessarily be
PD-equivalent.  We still have to ask.

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