Ch. 1 · 第２節 信号
When the boundary line of a traffic lane is marked with a solid yellow line, lane changes are prohibited in all situations.
[True / False · Medium]
Answer: False
Explanation
When the boundary line of a traffic lane is marked with a solid yellow line, lane changes are prohibited in principle, but there are exceptions such as yielding to emergency vehicles or making unavoidable lane changes to turn right or left. The Rules of the Road clarify that this is not an absolute prohibition "in all situations."
Source: Ch. 1 · Section (第２節 信号) · 第２節 信号、標識・標示に従うこと（3. 標示の意味）
See the glossary for definitions of key terms.