Sewage sludge compost can be utilized as an agricultural fertilizer from secondary raw materials and as a soil filler in gardening, landscaping, and land reclamation. The composting technology is tested and available; moreover, the use of low-pollution compost is crucial. To ensure and guarantee quality, as well as for product sale, quality assurance systems similar to those for bio-waste compost should be applied. Voluntary quality confirmation of products made from sewage sludge can achieve important goals.