"In the aftermath of the events in March, New Zealand showed what a compassionate place it is."
Associations also praise YouTube for imposing stricter livestreaming measures.
Bill proposed by prime minister on Saturday introduces fine and jail time as punishment for breaches.
VIDEO: Interviewed at Campaign360 the week before the Christchurch attacks, Neil Stewart's remarks now hold greater significance in the light of what happened.
"Overseas clients can support New Zealand by continuing to share their kind words of support and thoughts with those affected."
Group pledges support to Association of New Zealand Advertisers following Christchurch attacks.
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