This book is written for developing countries. Since it seeks to encourage the designing of waste collection systems based on local information, the approach is valid in any country. The main focus is on municipal solid waste, which is taken to include waste from households, businesses and institutions, construction and demolition waste in small quantities, general solid waste from hospitals (excluding hazardous waste), waste from smaller industries that is not classified as hazardous, and waste from streets, public areas and open drains. It is not concerned with waste from agriculture, larger industries, or the mining industries, which normally handle their own waste.