HACCP is intended for organisation that are concerned with the production, processing or distribution of foodstuffs. Foodstuffs mean all food and drink products, but also raw materials and help ingredients that are used in food. If you work in this sector, HACCP certification is mandatory. The government strictly controls compliance with this certification.
For small companies, however, the requirements are met via hygiene codes, because it is not possible for these companies to create their own HACCP plan.