RSPCA Cymru say the announcement is “brilliant news for animal welfare” - and have urged Highways England to ensure similar messages appear in England too
Wales will continue to display messages warning motorists about the dangers of leaving dogs in a hot car during spells of warmer weather.
The Welsh Government confirmed the "brilliant news" in a letter to the RSPCA, who have long championed the benefits the signage can play in raising awareness of their ongoing campaign.
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