PORTLAND — The results are in for welding students at Portland Arts and Technology High School who accomplished a first by taking a national certification test.

Teacher Bill Presby said 15 of 22 students passed all four sections of the hands-on test last week, which was overseen by welding instructors from Eastern Maine Community College in Bangor.

Four students passed three of the four sections and will be able to retake the section that they failed.

The test is based on the professional standards of the American Welding Society.

PATHS is the first high school in Maine and among few high schools in the nation to offer the test.

Passing it provides marketable credentials in a high-demand field after graduation.