Mr Randell features in the video along with Ngati Kahungunu chairman Ngahiwi Tomoana, Hastings Mayor Lawrence Yule, Hawke's Bay Regional Council chairman Rex Graham and local farmers and growers.
Prior to Christmas, the Maori Party told Mr Smith in a letter that it did not support new regulatory powers (under s360D(1)(d)). All other political parties have condemned the clause.
Mr Tomoana said he hoped the Government and the Maori Party would listen to the voice of the regions.
"We have a duty for our people to provide the best food from the best land on the planet - free of genetic modification.
"We will work face to face and shoulder to shoulder with all our communities and we won't allow anyone to take these rights from us."
Mr Yule, whose district was the first in New Zealand to claim its GM Free status, said 360D was about taking away local decision-making powers and he urged the Government to reconsider.
"I support most of the changes to the RMA but the change that we are most concerned about are those that affect our ability as a local community to decide what we want. 360D allows the Government to override our preferences and particularly in Hastings' case, where the district wants to be GM Free."
Mr Graham said taking away the right to remain GM Free would jeopardise the ability for exporters to stand out on the world stage.
"Everything we grow is GM Free - we don't grow genetically modified food crops and we want to keep it that way.
"We export and market our food across the world as GM Free. This is our point of difference and it gives us a competitive economic advantage and we want to protect that."
Exporter Philip Bird says 99 per cent of New Zealand export produce is conventional and the international markets are demanding GM Free produce.
"I export 25 thousand tonne of New Zealand conventional grown fruit and vegetables around the world and our customers want GM Free produce."
Bostock New Zealand owner John Bostock, who has been exporting premium produce for more than 30 years, says the marketing opportunities around the world are huge for growers and the economy, but only if it remains GM Free.
"We don't want central government interfering with how we market our produce. We want them to stand up and let our community decide our GM policy.
"New Zealand is never going to feed the world. We will only ever feed a small proportion of the world, so we have to focus on our point of difference and that is offering high-end, premium food that is GM Free."