<div dir="ltr"><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">> Am I right to assume that this policy, in particular the definition of "open data" at No 6, is sufficiently clear so as to use the data without further permission?<br>
<br></blockquote><div> No, it's not. It is a 'policy', not a license. The site says "
City of Houston GIS(COHGIS) data is prepared and made available for general reference purposes only", and you (OSM) would be re-publishing and redistributing. Sometimes, GIS-ish data is supplied to cities by vendors with specific terms of use and redistribution, and those vendors are allowed to sell the data to anyone else ( cost reduction strategy ). <br></div><div><br></div><div>From two Open Data Portals:<br></div><div><br></div><div><b>City of Seattle</b> has a notice in the dataset metadata:Terms of Use -<i> Access constraints: </i><span>GISUSER_RO Account Access, Public access.</span><i>Use constraints: </i>Reproduction/distribution
of GIS data for commercial purposes is prohibited, unless expressly
authorized through a separate licensing agreement with The City of
Seattle. Public use. <div><b>King County</b>:
<span><span id="ember712" class="gmail-dataset-license-component ember-view">King
County data are made available with the understanding that they shall
be used exclusively by the obtainer or his/her authorized agents.
Digital products may not be reproduced or redistributed in any form or
by any means without the express written authorization of King County.</span></span></div><div><span><span id="ember712" class="gmail-dataset-license-component ember-view">( both of these jurisdictions readily granted OSM's request, BTW )</span></span></div><div><span><span id="ember712" class="gmail-dataset-license-component ember-view"><br></span></span></div><div><span><span id="ember712" class="gmail-dataset-license-component ember-view">Always ask. <br></span></span>
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