[Imports] Fwd: Marin County data license

Serge Wroclawski emacsen at gmail.com
Fri Oct 31 11:08:04 UTC 2014

The minute you use the word "MUST", it's not a request, it's a demand.
If the data was public domain, there would be no restrictions.

Also, no where on the page does it use the word "Public domain", nor
in any of the data I downloaded, does it have a license listed.

Therefore it falls back to plain old copyright.

- Serge

On Fri, Oct 31, 2014 at 7:06 AM, Martin Koppenhoefer
<dieterdreist at gmail.com> wrote:
> 2014-10-31 11:54 GMT+01:00 Serge Wroclawski <emacsen at gmail.com>:
>> So let me explain why it's contradictory. Public domain is a term of
>> art. If something is public domain, you can place *no* restrictions on
>> it. You can't say that there's a requirement for attribution. You can
>> even take a public domain work and claim copyright ownership over it.
> Serge, by looking at their reply I'm not sure it contains any restrictions:
>> "You may download public domain data from the MarinMap GIS data download
>> site.
>> You do not need a license to use public domain data.
>> You may acknowledge “MarinMap” as the original source, but you MUST state
>> that MarinMap has no responsibility or warranty regarding data after they
>> have entered the public domain.
>> You may use the legalese from the disclaimer web page to facilitate
>> writing a disclaimer.
>> URL of the disclaimer page:
>> http://www.marinmap.org/dnn/Pages/LegalNoticeDisclaimer.aspx"
> They say you might (even though you don't have to) attribute them, but if
> you attribute you must make clear that there is no implied warranty.
> On the linked page they also state: "Most map data, especially parcels, are
> not survey precise."
> this is a hint that the quality might not be as good as what we typically
> have in OSM (at least in areas which haven't suffered from bad imports)
> cheers,
> Martin

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