A submittal is a document, sample, or other information that contractors provide to architects, engineers, or owners for approval before using materials or methods in construction. Submittals include shop drawings, product data sheets, material samples, manufacturer certifications, and test results. The submittal process ensures that proposed materials and methods meet design specifications and quality requirements before installation. Reviewers check submittals against specifications and either approve, approve with comments, or reject and require resubmission. Submittal review is a quality control checkpoint preventing inappropriate materials from being incorporated into projects. Municipal projects require submittal review by designated staff or consultants, with documentation maintained for project records.