Chicago and the Camorra

[B.]

How does someone enter Camorra? is it like entering Cosa Nostra? and in the case of the Capone era?

Someone else can comment on internal Camorra protocol, but from the examples we have, Camorristi had to enter the US mafia the same way any associate would. Camorra was not recognized as "the same thing" as the mafia, so while Sicilian mafia members were recognized as "the same thing" and could be introduced to US mafia members (something that still happens, as evidenced by recent Italian investigations) and therefore transfer their membership, Camorristi had to go through a mafia induction the same way any associate would. Naturally their underworld experience as Camorristi could make them more deserving of induction than an average neighborhood Joe and the mafia would have known who these people were.

Former San Fran boss Tony Lima who turned CI commented on this, as he inducted a Camorrista into the San Francisco family while he was boss. There are similar examples in other cities, too and in each case the Camorristi joined the mafia rather than the other way around, at least by a certain point in history. Richie Boiardo's FBI file includes a report that says this began around 1915. Al Capone and other Masseria/Genovese members are referenced in the same report.

I'm aware of no known examples of Camorristi being recognized as members of the mafia in the US or Sicily based on their status as Camorristi alone, it is only after they have been inducted into the mafia / Cosa Nostra that they are recognized. Of course this is open to review if new info ever comes.

Would Paul Ricca count?

He would have had to undergo a mafia induction in order to be recognized, even if it was just someone saying "you're in." An easy way to understand it is, you have to be able to be introduced as a "friend of ours" / "amico nostra" and the only way that can happen is if you join the mafia.

Didn’t a pentito in Sicily state that the leaders of the Camorra and ‘Ndrangheta are members of Cosa Nostra and went through the induction ceremony?

I've read that, too, but I couldn't remember who it was. They said they inducted them into Cosa Nostra in order to recognize them. It would fit exactly with what seems to have happened in the US.

Anthony Lima said he inducted a Camorrista into the mafia in San Francisco after getting advice from someone else (probably his uncle Sam Lima). They felt by inducting him into the mafia they could better control him but it didn't work out and Lima shelved him a year later.