Washington Application for House to House Sales Employer Registration Certificate is a document issued by the state of Washington to employers who wish to hire salespeople for house to house sales. This certificate is required for employers who want to hire salespeople to conduct door-to-door sales in the state. It is issued by the Washington Department of Revenue and is valid for two years. The certificate is designed to protect both the employer and the consumer by ensuring that salespeople are properly screened and trained in order to provide a safe and secure environment for door-to-door sales. There are two types of Washington Application for House to House Sales Employer Registration Certificate: one for those who are hiring in-house salespeople and one for those who are hiring independent salespeople. The in-house salesperson certificate requires employers to provide training in sales techniques and customer service. It also requires employers to provide a safe working environment for salespeople. The independent salesperson certificate requires employers to provide a written agreement between the employer and the independent salesperson that outlines the scope of the agreement and the terms of payment.