MPI has a range of information about food safety requirements on its web site
The web site states that if you grow, process, sell, import or export plant products as food, you need to meet residue limits, food safety and quality requirements. Plant products include fruit, vegetables, herbs, spices, nuts, cereal grains, seeds, fungi, grasses and components extracted or gathered from plant products. Although New Zealand currently has no food safety regulations for exporting plant products, some destination countries may require assurances around food safety, pesticide residues or quality parameters (grade).
MPI has developed a voluntary official grade assurance programme for fresh plant products. This facilitates exports of apples, pears and kiwifruit to the European Union (EU) and Canada. It is based on a Standard that enables you to demonstrate compliance with specific market requirements so that your consignments are eligible for an official assurance.
If you wish to export under this programme, you need a quality grade management plan. The requirements for registering your plan are described in the Standard which is the basis for the programme.
If you export organic plant products, MAF offers an Official Assurance Programme which facilitates access to markets in the EU, Japan, Switzerland, Taiwan and the United States of America.
For a description of General requirements & programmes that apply across food sectors whether for New Zealand or export consumption.
A new Food Bill is currently being considered by Parliament. This Food Bill will influence how food is grown and sold for consumption in New Zealand and for export. Latest information on the Food Bill is available here