Plumber is a tradesperson who specializes in installing and maintaining systems used for potable (drinking) water, and for sewage and drainage in plumbing systems. A plumber

In Canada, licensing requirements differ by province; however, the provinces have pooled resources to develop an Interprovincial Program Guide that developed and now maintains apprenticeship training standards across all provinces. The Red Seal Program, formally known as the Interprovincial Standards Red Seal Program, is a program that sets common standards to assess the skills of tradespeople across Canada. The Red Seal, when affixed to a provincial or territorial trade certificate, indicates that a tradesperson has demonstrated the knowledge required for the national standard in that trade.

• In Canada, licensing requirements differ by province; however, the provinces have pooled resources to develop an Interprovincial Program Guide that developed and now maintains apprenticeship training standards across all provinces. The Red Seal Program, formally known as the Interprovincial Standards Red Seal Program, is a program that sets common standards to assess the skills of tradespeople across Canada. The Red Seal, when affixed to a provincial or territorial trade certificate, indicates that a tradesperson has demonstrated the knowledge required for the national standard in that trade.

National Vocational Qualifications (NVQ) remained the main form of plumbing qualification until they were superseded in 2008 by the Qualification and Credit Framework (QCF) and then again, in 2015, into the National qualifications frameworks in the United Kingdom. The terms NVQ and SVQ (Scottish Vocational Qualification) are still widely used.

• National Vocational Qualifications (NVQ) remained the main form of plumbing qualification until they were superseded in 2008 by the Qualification and Credit Framework (QCF) and then again, in 2015, into the National qualifications frameworks in the United Kingdom. The terms NVQ and SVQ (Scottish Vocational Qualification) are still widely used.
• Plumbers in the United Kingdom are required to pass Level 2 and Level 3 vocational requirements of the City and Guilds of London Institute. There are several regulatory bodies in the United Kingdom providing accredited plumbing qualifications, including City and Guilds of London Institute and Pearson PLC