We all know, that from the design and engineering point of view FVNR is the correct term, to differentiate it from RVSS (reduced voltage solid state or softstart).
All of you are right!!!
I did my research and found out that:
ACL = ACross the Line (acronym used in some sectors of the water and wastewater industry and some IEEE articles). ACL, also can be found in CAD, graphic and drafting standards (or symbology) in architecture and construction sector in early 90's. e.g. "blueprints" and drafting manuals dated between 1900 to 1990.
ATL = Across The Line (acronym used by some motor starter's manufacturers and end-user sector, mostly in USA). ATL starter is defined as follow; a category of starters in which the motor is directly connected to the supply lines, allowing full voltage when the motor starts; therefore across the line. In my opinion, ATL is used by a writer or an author (in technical articles or manuals) after mentioning the whole word as a form of laziness, or I should say to avoid redundancy.
DOL = Direct On Line starters (acronym used all around the world, electrical engineering books and electric motor-related reference, therefore the most commonly used).