美国国土安全部和移民局联合宣布将对STEM专业范围修订，新增加8个专业领域，意味着这些专业也能申请24个月的OPT延期啦！OPT全称是Optional Practical Training，是指留学生在毕业后继续以F1学生签证身份在美国带薪实习，一般被认为是留学生在拿到H1B工作签证之前的过渡性签证。
OPT一共分为两种类型：普通OPT和STEM OPT。普通OPT的期限为12个月，而STEM OPT可以获得额外的24个月延期，共计3年。
新增的8个研究领域被纳入STEM：
1）Landscape Architecture ( 04.0601 景观设计)包括：
Geology and Hydrology
Soils, Groundcovers, and Horticultural elements
Project and Site Planning
Landscape Design, History, and Theory
Environmental Design
Applicable Law and Regulations
Professional Responsibilities and Standards
2）Institutional Research ( 13.0608 机构研究)包括：
Data Analysis
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Data Mining
Higher Education Administration and Organization
Research Methods
Statistics
3）Mechatronics, Robotics, and Automation Engineering Technology /Technician(15.0407 机电一体化、机器人与自动化工程技术)包括:
Computer and Software Engineering
Control Engineering
Electronic and Electrical Engineering
Mechanical Engineering
Robotics
4）Composite Materials Technology/Technician(15.0617 复合材料技术/技术员)包括:
Computer-Aided Design and Drafting
Composite Materials and Processes
Composite Maintenance
Composite Manufacturing
Composite Repair
Material Science
Mold Manufacturing and Production
5）Linguistics and Computer Science (30.4801 语言和计算机科学)包括:
Computer Programming
Human Languages
Linguistic Analysis
Logic
Natural Language Processing
Semantics
Machine Learning
Psycholinguistics
Software Engineering
Syntax
6）Developmental and Adolescent Psychology( 42.2710 发展心理学和青少年心理学）包括:
Cognitive and Perceptual Development
Emotional Development
Personality Development
The Effects of Biological Maturation on Behaviour
Theories of Cognitive Growth and Related Research Methods
Testing and Assessment Methods for Different Age Levels
Research on Child and Adolescent Behaviour Therapy
The Psychology of Aging
7）Geospatial-Intelligence ( 43.0407 地理空间情报)包括：
Aerial Photography Analysis
Cartography
Geographic Information Systems (GIS)
Physical Geography
Remote Sensing
Spatial Programming
Quantitative Methods in Geographic Research
8）Demography and Population studies( 45.0501 人口学与人口研究)包括:
Population Growth
Spatial Distribution
Mortality and Fertility Factors
Migration
Dynamic Population Modeling
Population Estimation and Projection
Mathematical and Statistical Analysis of Population Data
Population Policy Studies
Applications to Problems in Economics and Government Planning
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