<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div><span></span></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div><span></span></div><div><div>Hi,</div><div><br></div><div>According to your web site (see below) Canada’s NTv2.0 grid shift files are considered non-free Grids. I have recently been in contact with NRCAN regarding this fact and they have confirm that the license of the file is now considered Open under Canada’s Open Data license. </div><div><br></div><div><a href="https://open.canada.ca/en/open-government-licence-canada">https://open.canada.ca/en/open-government-licence-canada</a></div><div><br></div><div>We are now “...<span style="background-color: rgba(255, 255, 255, 0);"> free to </span><span style="background-color: rgba(255, 255, 255, 0);">Copy, modify, publish, translate, adapt, distribute or otherwise use the Information in any medium, mode or format for any lawful purpose.”</span></div><div><span style="background-color: rgba(255, 255, 255, 0);"><br></span></div><div>I am there proposing that Canada’s outdated NTv1.0 file should be removed from the proj packages and be replaced by the NTv2.0 grids. I can provide the new license, the contacts at NRCAN, if needed, and the latest NTv2.0 file in order to facilitate the proposed changes.</div><div><br></div><div>If you are responsible for this part of the project or if there is a more formal way of asking this change, please contact me directly.</div><div><br></div><div>Thanks,</div><div>Nicolas Cadieux</div><div><br></div><div>Btw, the link below for the file no longer works. I will provide a new link if needed during a transition period.</div><div><br></div><div><br></div><div><a href="https://proj4.org/resource_files.html">https://proj4.org/resource_files.html</a></div><div><h3 style="box-sizing: border-box; margin-top: 0px;"><span style="font-size: 19px; background-color: rgba(255, 255, 255, 0);">“Non-Free Grids<a class="headerlink" href="https://proj4.org/resource_files.html#non-free-grids" title="Permalink to this headline" style="box-sizing: border-box; text-decoration: none; cursor: pointer; display: inline-block; font-weight: normal; font-stretch: normal; line-height: 1; text-rendering: auto; -webkit-font-smoothing: antialiased; visibility: hidden;"></a></span></h3><p style="box-sizing: border-box; line-height: 24px; margin: 0px 0px 24px;"><span style="background-color: rgba(255, 255, 255, 0);">Not all grid shift files have licensing that allows them to be freely distributed, but can be obtained by users through free and legal methods.</span></p><div class="section" id="canada-ntv2-0" style="box-sizing: border-box;"><h4 style="box-sizing: border-box; margin-top: 0px;"><span style="background-color: rgba(255, 255, 255, 0);">Canada NTv2.0<a class="headerlink" href="https://proj4.org/resource_files.html#canada-ntv2-0" title="Permalink to this headline" style="box-sizing: border-box; text-decoration: none; cursor: pointer; display: inline-block; font-weight: normal; font-stretch: normal; line-height: 1; text-rendering: auto; -webkit-font-smoothing: antialiased; visibility: hidden;"></a></span></h4><p style="box-sizing: border-box; line-height: 24px; margin: 0px 0px 24px;"><span style="background-color: rgba(255, 255, 255, 0);">Although NTv1 grid shifts are provided freely with PROJ, the higher-quality NTv2.0 file needs to be downloaded from Natural Resources Canada. More info: <a class="reference external" href="http://www.geod.nrcan.gc.ca/tools-outils/ntv2_e.php" style="box-sizing: border-box; text-decoration: none; cursor: pointer;">http://www.geod.nrcan.gc.ca/tools-outils/ntv2_e.php</a>.”</span></p></div></div><div></div></div></div></body></html>