{"data":{"id":"us-md/md.-code-business-occupations-and-professions-6.5-302","jurisdiction":"us-md","citation":"Md. Code, Business Occupations and Professions § 6.5–302","heading":"","body":"(a) A Grade 5 stationary engineer licensee may oversee the operation of a boiler that:\n(1) (i) can be operated at 30 to 99 horsepower; and\n(ii) is located in a building not open for public use;\n(2) is inspected in accordance with the boiler laws and regulations by a special inspector or a deputy boiler inspector;\n(3) if not equipped with a 24–hour computerized monitoring system and automatic controls, is visited by a Grade 5 licensee at least once every 24 hours that the boiler is in operation; and\n(4) if equipped with a 24–hour computerized monitoring system and automatic controls, is visited by a Grade 5 licensee at least once per week that the boiler is in operation, if the licensee:\n(i) is responsible for the safe operation of the equipment at all times;\n(ii) is available to observe the monitoring equipment or devices and make the necessary adjustments at least once every 24 hours; and\n(iii) maintains a daily inspection log.\n(b) A Grade 4 stationary engineer licensee may oversee the operation of a boiler that:\n(1) (i) can operate at 30 to 99 horsepower; and\n(ii) is located in a building open for public use;\n(2) is inspected in accordance with the boiler laws and regulations by a special inspector or a deputy boiler inspector;\n(3) if not equipped with a 24–hour computerized monitoring system and automatic controls, is attended by a Grade 4 licensee as follows:\n(i) at all times that the boiler is in operation; or\n(ii) if located in a school:\n1. at all times during regular school hours; and\n2. only when at least 150 students, faculty, or members of the public occupy the building where the boiler is located during nonregular school hours;\n(4) if equipped with a 24–hour computerized monitoring system and automatic controls, is attended by a Grade 4 licensee as follows:\n(i) if located in a hospital, hotel, residential facility, or other building generally open to the public, is visited at least once every 8 hours that the building is open for public use, if the licensee:\n1. is responsible for the safe operation of such equipment at all times;\n2. is available to observe the monitoring equipment or devices and make necessary adjustments at least once every 24 hours; and\n3. maintains a daily inspection log; and\n(ii) if located in a school, is visited at least once every 8 hours:\n1. during regular school hours; and\n2. during nonregular school hours when the school building in which the boiler is located is occupied by at least 150 students, faculty, or members of the public, if the licensee:\nA. is responsible for the safe operation of such equipment at all times;\nB. is available to observe the monitoring equipment or devices and make necessary adjustments at least once every 24 hours; and\nC. maintains a daily inspection log.\n(c) A Grade 3 stationary engineer licensee may oversee the operation of a boiler that:\n(1) can operate at 100 to 299 horsepower;\n(2) is inspected in accordance with the boiler laws and regulations by a special inspector or a deputy boiler inspector;\n(3) if not equipped with a 24–hour computerized monitoring system and automatic controls, has a Grade 3 licensee in attendance at all times that the boiler is in operation; and\n(4) if equipped with a 24–hour computerized monitoring system and automatic controls, is attended by a Grade 3 licensee as follows:\n(i) if not located in a building open for public use, does not require regular full–time attendance or scheduled visitation, if the licensee:\n1. is responsible for the safe operation of such equipment at all times;\n2. is available to observe the monitoring equipment or devices and make necessary adjustments at least once every 24 hours; and\n3. maintains a daily inspection log; and\n(ii) if located in a school, hospital, hotel, residential facility, or other building generally open to the public, is visited at least once every 8 hours that the building is open for public use, if the licensee:\n1. is responsible for the safe operation of such equipment at all times;\n2. is available to observe the monitoring equipment or devices and make necessary adjustments at least once every 24 hours; and\n3. maintains a daily inspection log.\n(d) A Grade 2 stationary engineer licensee may oversee the operation of a boiler that:\n(1) can operate at 300 to 499 horsepower;\n(2) is inspected in accordance with the boiler laws and regulations by a special inspector or a deputy boiler inspector;\n(3) if not equipped with a 24–hour computerized monitoring system and automatic controls, has a Grade 2 licensee in attendance at all times that the boiler is in operation; and\n(4) if equipped with a 24–hour computerized monitoring system and automatic controls, is attended by a Grade 2 licensee as follows:\n(i) if not located in a building open for public use, does not require regular full–time attendance or scheduled visitation, if the licensee:\n1. is responsible for the safe operation of such equipment at all times;\n2. is available to observe the monitoring equipment or devices and make necessary adjustments at least once every 24 hours; and\n3. maintains a daily inspection log; and\n(ii) if located in a school, hospital, hotel, residential facility, or other building generally open to the public, is visited at least once every 8 hours that the building is open for public use, if the licensee:\n1. is responsible for the safe operation of such equipment at all times;\n2. is available to observe the monitoring equipment or devices and make necessary adjustments at least once every 24 hours; and\n3. maintains a daily inspection log.\n(e) A Grade 1 stationary engineer licensee may oversee the operation of a boiler that:\n(1) can operate at 500 or more horsepower;\n(2) is inspected in accordance with the boiler laws and regulations by a special inspector or a deputy boiler inspector;\n(3) if not equipped with a 24–hour computerized monitoring system and automatic controls, has a Grade 1 licensee in attendance at all times that the boiler is in operation; and\n(4) if equipped with a 24–hour computerized monitoring system and automatic controls and is attended by a Grade 1 licensee as follows:\n(i) if not located in a building open for public use, does not require regular visitation, if the licensee:\n1. is responsible for the safe operation of such equipment at all times;\n2. is available to observe the monitoring equipment or devices and make necessary adjustments at least once every 24 hours; and\n3. maintains a daily inspection log; and\n(ii) if located in a school, hospital, hotel, residential facility, or other building generally open to the public, is visited at least once every 8 hours that the building is open for public use, if the licensee:\n1. is responsible for the safe operation of such equipment at all times;\n2. is available to observe the monitoring equipment or devices and make necessary adjustments at least once every 24 hours; and\n3. maintains a daily inspection log.","path":["Article - Business Occupations and Professions"],"source_url":"https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gbo\u0026section=6.5-302","current_through":"2026-01-01","vintage":"","retrieved_at":"2026-09-14T19:56:13Z","sha256":"351f20e7a89f3674d37d980f5108318bb6ea05edbd39dd67a83f297b6b83efdf","source_id":"us-md","stale":false,"prev":"us-md/md.-code-business-occupations-and-professions-6.5-301","next":"us-md/md.-code-business-occupations-and-professions-6.5-303"},"notice":"GroundRules: Original legal text. Not legal advice."}