Dialog:
Person A) What are the main activities of National Council for Voluntary Youth Services?;
Person B) From 1939, membership was open to so-called 'National Juvenile Organisations' which had a membership of at least 10,000, which were non-political in nature, and which worked towards assisting youths' mental, moral or physical training for citizenship.;
Person A) Are there any other interesting aspects about this article?;
Person B) These requirements remained until 1972, when it was decided that a membership of 10,000 was no longer necessary.;
Person A) What happened after 1972?;
Person B) The constitution was also changed at this time so that members were now classified as 'Community and Voluntary Youth Services', which included local government initiatives, or 'National Voluntary Youth Organisations', which included charities and foundations.;
Person A) What other activities do they do?;
Person B) 

The SCJO was renamed several times, but remained consistent in its aims and values.