The project will document what is known and not known about ECE apprenticeships in order to develop a learning agenda that will describe gaps in the knowledge base and highlight promising areas for future research for the field. The project will include: (a) an environmental scan of existing materials and resources; (b) expert interviews; and (c) a convening to discuss key findings from the scan and interviews. The project will culminate with the development of a learning agenda. The project addresses the following research questions: 1. What is known (and not known) about the effectiveness of ECE apprenticeship programs? What are the documented outcomes of ECE apprenticeship programs and what outcomes are of interest to the field? 2. What is known (and not known) about the development and implementation of ECE apprenticeship programs and associated facilitators and barriers? 3. What is known (and not known) about participation in and access to ECE apprenticeship programs? 4. What is known (and not known) about the financing of ECE apprenticeship programs? 5. What existing data sources are available to address questions about ECE apprenticeship programs? 6. How do answers to the above vary, if it all, by the ages of children served (i.e., infant/toddler vs. preschool), funding type (e.g., Head Start funded vs. state/local publicly funded vs. privately funded), apprenticeship type (e.g., registered vs non-registered), and setting type (e.g., family child care vs. center-based)? (author abstract)