A Bolton school remains ' outstanding', retaining the title for almost 20 years.
Rumworth School in Ladybridge was given the highest grade after a recent Ofsted inspection, its first full one in a decade.
It was first rated outstanding by the education regulator in 2006, with the recent examination having taken place on March 19 and 20 this year.
Lead Inspector Sue Eastwood and Ofsted Inspector Sheldon Logue were impressed with the "sense of belonging" for pupils, the "passion" of the staff and the "exceptionally effective and ambitious" curriculum at the school.
The report reads: "Pupils have a strong sense of belonging at this warm and inclusive school. They benefit from a culture that celebrates difference.
"Pupils enjoy exceptionally strong, caring relationships with adults, who know them very well.
"Staff are passionate about providing the very best education for pupils.
"Pupils, all of whom have special educational needs and/or disabilities (SEND), achieve highly."
It adds: "Older pupils are excellent role models for their peers. They relish the many responsibilities that they have. For example, at lunchtimes, they serve meals and support younger pupils.
"The school has designed an exceptionally effective and ambitious curriculum. Curriculum thinking is highly developed and reflects a strong resolve that every pupil will achieve all that they possibly can and be well prepared for life in modern Britain.
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"Teachers are confident in the subjects that they teach. They pride themselves in finding inventive and interesting ways to explain new ideas clearly.
"Staff skillfully help pupils to regulate their own behaviour and to manage their emotions. They are quick to notice when pupils experience distress or discomfort and they respond sensitively."
The report adds: "The school offers pupils many high-quality opportunities to develop themselves personally. For example, pupils of all ages love their rehearsals for the school show.
"Parents and carers said that they are so proud to see their children performing and that ‘there is rarely a dry eye in the house’ by the end of a show."
Headteacher, Jennifer Dunne, said: "We are extremely proud of the overall grade, but the bit that is heart-warming is all the lovely comments in the report about what we do with the children.
"I have only been here since September, but the school was in a good place before I took over.
"Every child has an educational healthcare plan. It is more than just education, we offer a holistic approach, with a focus on life skills and communication.
"There is a real community feel, the pupils look up to each other, the sixth form students are strong role models."
She added: "I would like to give a huge thank you to all of the students, the staff, the families, the governors and the stakeholders, because this is not just a one-person report, not just work that has been done since September.
"Everyone has played a part."
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