La legge federale cambia.

La is the feminine singular definite article, meaning the.

It is used because legge is a feminine singular noun:

• la legge = the law

Unlike in English, Italian articles must agree with the noun in gender and number.

In Italian, nouns ending in -e can be either masculine or feminine, so the ending alone does not always tell you the gender.

Legge is simply a feminine noun, so it takes:

• la legge = the law

This is something learners often need to memorize noun by noun.

In Italian, adjectives often come after the noun they describe.

So:

• la legge federale = the federal law

English usually puts adjectives before the noun, but Italian commonly places them after. In this sentence, that is the normal order.

Federale agrees with legge.

Here:

• legge is feminine singular
• federale is the singular form that works for both masculine and feminine

So:

• legge federale = feminine singular noun + singular adjective

For comparison:

• il governo federale = the federal government
• le leggi federali = the federal laws

Notice that in the plural, federale becomes federali.

Cambia is the third-person singular present tense of cambiare.

So it means:

• changes
• is changing
  depending on context

Italian simple present often covers both the English simple present and present progressive.

Because the subject is la legge federale, which is third-person singular.

So the verb must also be singular:

• la legge federale cambia = the federal law changes

Compare:

• le leggi federali cambiano = the federal laws change

It can mean either, depending on context.

Italian often uses the present tense where English might choose:

• changes for a general fact or habitual action
• is changing for something happening now

So La legge federale cambia could mean:

• The federal law changes
• The federal law is changing

The wider context tells you which is intended.

Yes. Cambiare can be used in two ways:

• Intransitive: to change
• Transitive: to change something

In this sentence, it is intransitive:

• La legge federale cambia = The federal law changes

If it were transitive, there would usually be a direct object:

• Il governo cambia la legge federale = The government changes the federal law

Italian usually does not need a subject pronoun if the subject is already clear.

Here, the subject is explicitly stated:

• La legge federale

So adding a pronoun would be unnecessary.

Italian often omits subject pronouns because the verb ending already gives useful information:

• cambia already shows a third-person singular subject

Legge is pronounced roughly like LEJ-jeh.

A few useful points:

• the gg before e makes a sound like the j in judge
• the final -e is pronounced, not silent

So it is not like English leg. The sound is closer to:

• LEJ-jeh

The normal order here is:

• La legge federale cambia.

That is the most neutral and natural version.

Italian word order is somewhat flexible, but changing it usually adds emphasis or sounds more literary or marked. For a learner, the standard order is the best choice.

Usually La legge federale cambia sounds like the federal law changes / is changing, referring to a specific law system or body of law.

If you wanted a more general statement such as Federal law changes, English itself is a bit ambiguous. In Italian, context would matter a lot. The article la makes the phrase sound definite: the federal law.

So the most straightforward reading is definite, not a general headline-style phrase.

The dictionary form is cambiare, meaning to change.

This is a regular -are verb.

Present tense:

• io cambio = I change
• tu cambi = you change
• lui/lei cambia = he/she changes
• noi cambiamo = we change
• voi cambiate = you all change
• loro cambiano = they change

So cambia is the he/she/it form.