When a large-scale specified telecommunications service provider has taken transmission prevention measures with regard to the dissemination of information through specified telecommunications conducted using the large-scale specified telecommunications service it provides, it must, except in a case falling under either of the following items, without delay, take measures to notify the sender of the information whose transmission was prevented by those transmission prevention measures of that fact and the reasons therefor, or to place that fact and those reasons in a state in which the sender of that information can readily learn of them (referred to as "notification or similar measures" in item (ii) and in item (iii) of the following Article). In this case, if those transmission prevention measures were taken in accordance with the standards under paragraph (1) of the preceding Article, it must make clear, in those reasons, the relationship between those transmission prevention measures and those standards.
大規模特定電気通信役務提供者は、その提供する大規模特定電気通信役務を利用して行われる特定電気通信による情報の流通について送信防止措置を講じたときは、次の各号のいずれかに該当する場合を除き、遅滞なく、その旨及びその理由を当該送信防止措置により送信を防止された情報の発信者に通知し、又は当該情報の発信者が容易に知り得る状態に置く措置（第二号及び次条第三号において「通知等の措置」という。）を講じなければならない。この場合において、当該送信防止措置が前条第一項の基準に従って講じられたものであるときは、当該理由において、当該送信防止措置と当該基準との関係を明らかにしなければならない。
if the large-scale specified telecommunications service provider is the sender of the information for which it took transmission prevention measures;
当該大規模特定電気通信役務提供者が送信防止措置を講じた情報の発信者であるとき。
if it has previously taken notification or similar measures with regard to having prevented the transmission of similar information to the same sender for a similar reason, or if there is otherwise a justifiable reason for not taking notification or similar measures